Nice creation, but I think it's missing a background. Good luck!

Bad masking of skull, obviously done with magic wand tool that broke antlers into pieces & made choppy edges. I have no idea what the stuff on her body is supposed to be.

Good but the dog doesnt have its reflection in the water.

A quite scary monster, the dog has reason to run like that! Personally I like the image more as how it was in step 5 of your SBS, right now the grey with black behind the monster and dog look a bit distracting for me. And yes, the_germ has a good point with the reflection. Good luck!

Background is a 3D render, and not usable. Please read 5.7. 3D Renders or Illustrations as Source: Using other people's 3D renders or illustrations (even with permission and no matter in which form they are offered) creates a false impression of your artwork. So 3D renders or illustrations (this includes brushes, tubes, clipart, pdf files) can not be used as sources, unless they are entirely created by yourself.

Now all you have to do is remove the shadow of the vulture, since you've got the light source directly overhead, and it's far behind it, which would cast no shadow. GL author.