Beginning the sepia tone pass. Just threw some dark color in to separate the foreground and background. This dark color is doing what I was hoping it would so far, popping the characters off the painting. Next I think I will try something a little different than what I've tried previously. I'm going to assign colors to each character before going in with a brown tone. Should be interesting. I'm thinking blue/green/yellow on the dragon knight, red/green on the lady knight, and yellow/red on big meanie back there.