Danial-san!
Looking good, but I think you need to fix the angle of everything above the legs. With the way the upper body looks, it would look like his feet would be on a perfectly horizontal line. But since the feet are on an angled line for that angled view, the rest of him should be angled as well. As it looks right now, it appears that his left leg is much shorter than his right. The angle of the head is fine.
And on the head... the eyes look to close together. Get rid of that dark line next to his left eye. Actually, hold on... Let me make an edit. I'll post it up soon.
- EDIT -
And here it is. A quick edit on your Karate Guy.
Original >
My edit >