Kato vs Nathan

Did this with Sai and Photoshop CS5. This time I draw them directly on those drawing programs ( I use to draw on paper, scan it to pc and draw line on it with photoshop)

This is where two best friends become enemy
Kato and Nathan is my OC's, who I have created about two years ago.

Kato have learned to control his dark power and decided to use it against Nathan, who want to destroy it.

hope you guys enjoy it