Robo Tagger

I originally did this guy as a t-shirt design for a friend's website...which never took off. I just uncovered it in my rats nest of a harddrive. Maybe I'll make my own damn shirt out of it!
If any of you talented colorists out there want a stab at this guy, let me know and I'll see if i can dig up a higher-res pic for you to assault with your Wacom.

(pen & ink, about 8.5" x 14")