How to color in Ps

Sorry for my terrible english!!!Seriosly!!!Hope that you understand it!!!!

Ahiem...this is the english version, en español por aqui [link]
Remember, the draw is propety of ~XERISTAR, and the finished work here [link]
I promise I will stop spamming your inbox tomorrow, but i have a very busy weekend!!!

_{Well, you know everithing here...I want to sleep now, jeez}