The color study is on a panel about 5"x7". I took a photo of my block-in drawing, printed it, and then used it to make a charcoal transfer. It made it a lot easier to come up with a mini version to use for a color study. The ebauche on the larger painting (16"x20") has a bit of that dead coloring that comes from working over a wipe-out. I prefer it to doing a color ebauche directly on the white canvas because I kind of like that neutrality to guage my colors against when I do my finishing pass (next stage).