Finally got around to coloring her. I decided -- after cycling 'command Z' about a billion times -- to go with a black backdrop as opposed to white. While I think white fit the character better the black really helps bring out some secondary lighting. An aesthetic choice that I will probably be grappling with for the next few days.
A side note: I think the final stage of my coloring process -- what I've come to call the 'nitpicking' stage -- takes up about fifty percent of the designated time.