Heh, that's an awesome take on Megaman, Atnas. The only thing I think needs fixing is the face... the eyes look absolutely empty, for some reason. Perhaps because they're 'attached' to the helmet. You actually did great with the limitations... I broke apart the sprite and you pulled off some nice work. The transition between the skin tone and light blue wasn't even noticeable until I actually broke apart the sprite.
It actually looks like it'd go great with Vierbit's tileset... which is also awesome, even if it doesn't really look anything like Megaman in the slightest.