Painting Progression Barcelona June 19, 2017 by Virginia Togrye in Virginia Togrye Joint compound applied to board in high relief and experienced cracking. Switched to flexible modeling paste. After about one week of drying used an electric sander to achieve shape of corner building. Sketched design. Applied additional layering with cake decorating tools and palate knife. Started painting. Added additional paint impasto in areas. Continued painting from original photo The completed painting. Painted black around edges because irregular shape will make framing difficult. Painting continues.