Taught a continuing education class called “Sketching for Design Solutions” last fall to a group of professional interior designers. This one-point perspective window seat image was one of the drawing activities. I am just getting around to adding color with my Copic markers. In this rendering I stepped out and used some brighter orange, yellow and purple hues. The worksheet below was used for my visual color reference as I added color to the image. I will usually start rendering an image with a small group of marker colors and then add more as I go. I like to note the maker color numbers for quick reference in the future.