Zaraki Kenpachi

Ok, so this is my first critique, so I'll try my best here.
Um... Damn. I mean, just damn. This totally awesome. The detail on his face is so sharp and perfect, especially on the outlines, and everything seems perfect and not out proportion at all. I really hope you didn't trace it, because that would detract from it.
However, even if you did, the shading and background are amazing. The shading looks so smooth and natural, and the different levels of shadows on his face are a great touch.
But the best is the background and how much it stands out and calls for attention. The sharp contrast between white, black, and grey looks amazing and their wild and chaotic shapes really fit the character this was based on.
And to top it all off, this is my favorite character from BLEACH. Major, major, MAJOR kudos.