People are not lacking imagination, but they are not familiar with shortenings that come with perspective and muscular (and fat) folding of the body, in this case, a body of gorilla, which is also made not realistically, but rather like caricature, or cartoon.
Vector images are always prone to go toward simplification and cartoon-look.
That is way they see mistakes where they aren't.
That is why I see perfectly everything on this vector image, and all is clear. His left arm is on the ground (Gorillas use them while walking), and that arm is obscuring his other leg (it's way behind) and we can't see it. His right hand is up, in a menacing position, while his whole upper body is going toward us, thus shortening of perspective is making his lower part of the body smaller (that is why his other leg is tiny), also that bulge under his right arm is his stomach, folded. Gorillas have large stomachs.
As for the nose, I think it's better when artists can indulge their 'artistic freedoms'. This gorilla is more human-like with it, making his expression more menacing. It would be better that eyes are not just bright spots, I would personally add red pupils (if that is how is the black spots in eyes are called? Idk English very well) to correspond with his mouth and to make whole face more expressive.
I see good action pose and sound shortening of limbs and folding of musculature. Right hand could do some more 'fixing' on it due that gorillas have bigger thumbs, but all in all, this is pretty much good work.