I decided to be stupid and color his hair pink because I really wanted to
whee ~~~~~
xd sweatdrop because i was going to suggest pink for the clothing... but it seems sort of clashing... but it could be a dull tone maybe
sweatdrop ?
also, since people see that as a nice color or what not, and not that many serious bad guys wear it... ( assumeing this is the bad guy since you were talking about the protagonist as if it was a polar to it...
sweatdrop ) and a character from unlimited saga came into my head.... but he was still a good guy though :/ but I see you already chose what you wanted so~
never mind me, I was bored
xp nice drawing btw~
:D
Edit
to be on the more serious/helpful side here is some color bubbles to see what I mean by dull pink '-'.... I put some of the suggestions of gray and then the hair color with the eyes color in there and the background with some of the things I thought '-'