Painting: Red Rock Fantasy

Red Rock Crossing by Gretchen Lopez
G.Lopez_Red Rock(1)
G.Lopez_Coffe Pot Rock
G. Lopez_The Golden Hour_oil
G. Lopez_Mystic Afternoon_Plein Air_oil
Mystic Trail by Gretchen Lopez framed


Painting: Red Rock Fantasy
with Gretchen Lopez

Friday, December 15, 2023 | 10:00 am – 4:30 pm

  • Experience: Beginning to Intermediate. Some prior drawing experience is required.  Questions? Email Gretchen at
  • Medium: Students may work with any of the following – traditional oils; water-soluble oils; acrylics.
  • Materials List: Click the tab above for a list of materials students need to bring with them.
  • Registration: Each student needs to enroll individually.
  • Location: Sedona Arts Center, Theatre Studio.

Join me for this very special exploration of Sedona’s iconic landscape! Learn to paint the shapes and mix the colors which make this landscape special. This in person class will provide you with the tools you need to find your focal point and play with texture!

Previous drawing experience is a must!

Instructor demonstrations and lots of individual attention provided.


23 1215 GL

Gretchen Lopez

Gretchen Lopez

Gretchen’s work is inspired, not only by her love of painting, but from her ethnic heritage, teaching and the world around her.  After majoring in advertising and design, she went on to study fashion illustration at the Fashion Institute of Design and Merchandising in Los Angeles, then finished out her studies at The Art Center College of Design in Pasadena, California.  As a tenth generation Native of California, Gretchen is a descendant of the first Spanish settlers and the California Rancheros.  Combined with her native roots, her work is inspired by this rich Ethnic heritage.  Vibrant color and spontaneity, are expressed in the gentle beauty of the Native and Hispanic people she paints.  Combining the traditional with the contemporary, she is able to paint with freedom and passion.  Gretchen lives in Northern Arizona, where she continues to pursue her love of painting and teaching.  She has taught at the Sedona Arts Center for over 18 years, and teaches workshops abroad in Spain and Mexico.  Gretchen was nominated for the Viola Award for Excellence in Art Education, and has won numerous awards in the Sedona Plein Air Festival.  Her works are in private collections both nationally and internationally, as well in exhibits at the Historic Phippen Museum of Western Art.  Gretchen’s work is represented by The Sedona Arts Center Gallery, Adelante Gallery, and The Turquoise Tortoise Rogoway Gallery in Tubac Arizona.

She is also a member of the Impressionist Society of America.

Recommended materials for Gretchen’s classes, both online and in-person:


Canvases: canvas pads, panels or stretched – no smaller than 11 x 14

These can be purchased at Jerry’s Artarama:  Use Oil Primed for traditional oil and Universal Primed for use with water mixable oils or acrylics.  Stretched canvas is fine too. If you prefer cotton canvas, please be sure to purchase a good quality such as Fredrix or Blick.  Pads of canvas sheets are great for exercises, be sure to mount the canvas sheet to a board with masking tape.  Fredrix makes these pads up to 18×24.

Drawing materials:

  • Small drawing pad or drawing journal no larger than 11 x 14.
  • 314 drawing pencils or 6B pencils, I recommend a soft lead! Or charcoal if you prefer.
  • Kneaded eraser
  • pencil sharpener


  • A good palette about 12×16 inches. Masterson palettes are great with a piece of tempered glass for mixing your paints if you work in oil or water mixable oils.  If you work in acrylic, the Masterson comes with a sponge, palette paper, and instructions that will keep your paint from drying out.
  • New Wave palettes are wood, light weight and great for mixing your oils on, if you are working in traditional or water mixable oils.

Rags, Towels, Containers:

  • Rags or paper towels- blue Shop Towels are great and take a good beating
  • A small metal container for your odorless turpentine/Gamsol or plastic container for water
  • Spray bottle for water (for acrylic painters)

Brushes:  Synthetic hog bristle for oils and water mixable oils, softer synthetic are recommended for Acrylics-

Recommended brands: Silver White, Connoisseur, Galleria or Rosemary & Company

  • Long handled flats-#2, #4, #8, #10
  • Long handled brights- #8, #10
  • 1 1/2 inch inexpensive house painting brush with a an angled edge.  I usually get these at a hardware store or The Dollar Store.

Tube Paint:

We will learn to mix color for our subject from my suggested palette of tube colors. Here are the colors you will need for Traditional oils, water mixable oils, or acrylics:

  • Burnt sienna,
  • Burnt umber,
  • Transparent red oxide,
  • Cadmium red light,
  • Alizarin crimson,
  • Indian yellow (for water mixable oils, available in Holbein’s Duo Aqua and Cobra from Jerry’s Artarama)
  • Cadmium yellow medium,
  • Cadmium yellow light,
  • French Ultramarine blue,
  • Viridian,
  • Titanium White.

If you are working in traditional oils, I really do recommend adding a tube of Gamblin Transparent Red Oxide to your tube paints.  If you are working in water mixable oils, this color may be available in Cobra Paints!  For acrylic painters, please have a painting medium that will keep your color flowing and slow down the drying time.

Painting Mediums:

A good painting medium is recommended such as Gamblin Safflower oil for traditional oils.

For Water Mixable oils, “Water Mixable Painting Medium”.

These mediums allow a more satin flow to your pigments.

Palette knives:

Metal knives – one with a 3inch blade- for mixing paint, one with an inch and a half diamond shaped blade for painting detail.

Feel free to email me with thoughts or questions!

Cancellation Policy

Registration and Cancellation Policies


  • Each student must enroll individually
  • Classes must be paid in full upon registration
  • Students may register online or by calling the Sedona Arts Center’s Administrative Offices in the Art Barn, toll-free at 888-954-4442 or locally at 928-282-3809
  • Visa, MasterCard, Discover, or American Express are accepted or student may pay with cash or check by registering in person during office hours at the Art Barn

In-Person and Online Classes Cancellation

  • Students must cancel or transfer at least 7 days prior to the first day of class
  • If a student cancels or transfers before the 7-day cut-off, a 15% fee will be applied
  • If a student cancels within 7 days prior to class, there are no refunds
  • If Sedona Arts Center cancels the class for any reason, all payments made will be refunded in full

Important Message

The Sedona Arts Center is not responsible for providing make-up sessions or issuing refunds, credits, or transfers for courses missed as a result of illness, emergencies, or other events beyond our control. There are absolutely no refunds after the cut-off date for any reason, unless the Sedona Arts Center has to cancel the workshop, then all fees paid will be refunded in full.

It's made a world of difference for me. She's an A+ teacher and I've been languishing with no direction in painting, color mixing, brush technique for a long time. Her knowledge, patience, positive teaching style, and painting 'right along side' has been a great experience.

Gretchen has taught me to paint far better than I thought I could! Her patience and expertise are reasons I take her classes on a regular basis.

I love Gretchens' teaching style and her ability to share some of her mastery with her students. I will keep returning to her classes!

Gretchen is a wonderful artist and a wonderful person willing to tirelessly explain techniques and share her knowledge.

Ongoing encouragement. Extremely supportive. I learn something new in every class.