no, its not just you, proportions are pretty far off.
i understand orcs have large mouths, but thats maybe pushing it a bit, need to smallify/squash the face in general, bring the eyes down and in
i cant help but have the feeling that the back and skin of the face was handmade, but the or itself was photoshopped.
if it was, then its merged nicely
if it wasnt, it looks goodm you just would need to work on some stuff for the back of the head, a general gradient isnt quite enough, maybe include part of a neck collar or hood or something.
technique is good, proportions need work, shouldnt be too hard to fix up though