This is a great way to create a series of paintings without framing.
When the painting is done, I prefer to use a Krylon K01305 Gallery Series Artist and Clear Coatings Aerosol, UV-Resistant Clear Gloss https://amzn.to/4dqurKa to set the color. You can continue to use the spray or finish with a matt finish, or what I like even more is to topcoat the finish with a Jacquard Dorlands Wax Versatile Pure Wax and Damar Resin - Protective Topcoat for Sealing and Finishing https://amzn.to/44NbFKM
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