STEP 2: Begin to paint over the stencilled area with acrylics. Blend in similar or analogous colors (blues, bluegreens, greens) or add some contrast and strong vibration with complementary colors (e.g., purple and yellow). Cut out a few shapes at this point if you like. Hearts are easy to cut out and make a fitting addition to a Valentineâ€™s painting. Begin to envision how you would like the painting to move forward, now that you have created a strong background. Would you like this painting to feel more abstract or have some subject or narrative (story) to it? Make a decision and sketch out some ideas if you need to for your composition.