It looks good... I like that you have strong contrast dark and light.
You can be pleased with it, I think!
On the right eye (*his* right eye - the one that's to our left, lol), you see the very lowest part of the iris? It seems to curve round a little more than the one on his left eye, which kind of gives impression of that eye as slightly more high up than the other, even though the placing is right. I mean, the angle of the iris would be exactly the same on both eyes... oh hell, I sound really picky... I don't mean to be hyper-critical... it just struck me that I never say anything useful except 'it looks nice' or words to that effect... :sorry:
I started drawing Mana this evening... probably won't finish it before I go on vacation on Friday (yaaay!
) but I'll post where I get up to. *And* toothless Toshiya for you to laugh at