14. Textured Plaster Minimalist Waves
For a highly tactile, sculptural piece of art that looks like it belongs in a high-end coastal resort, textured plaster is the perfect medium. For this project, you will use joint compound or heavy modeling paste instead of traditional paint. Apply a thick, even layer of the paste across your entire canvas using a putty knife. While the plaster is still wet and pliable, you will carve patterns into it.
Using a notched trowel, a wide-toothed comb, or even a custom-cut piece of cardboard with wavy teeth, drag the tool slowly across the plaster in gentle, sweeping S-curves. This creates deep, rhythmic ridges that mimic the look of raked zen gardens or gentle ocean waves. Once the plaster dries completely over 24 hours, you can leave it stark white for a ultra-minimalist look, or apply a very thin, diluted wash of earthy beige or gray paint to highlight the depth of the shadows in the grooves.