Man that alien head is all wrong. The forehead is way too small. The ridges at the top of the head happen way too much in front. It's like the perspective went for a walk somehow. What's with the upper teeth? Just horrific. In a bad way. Sorry, I hate to nock an artist's work, but I can't stand hack work.
I do notice that the book comes from the Aliens imprint, with the Aliens classic logo. Hope that means good things...