you have to define forms,
it is undefined.The eyes, the mouth, the tooth.

the chain lacks highlights,

You can work on details on the face

Its human - monster and his face is reformed
Also I will add:
blood on his face
Muscle on his eye
Ears
More shadows
And maybe little tattoo

BUMP
WIP 8 added
Added blood parts
Also there won't be ears
-----
Bump
New Wip
Supreme is just joke or watermark, dunno

The chain looks very pixelated(although that may just be the screenshots).

It also needs shadows, as it stand now it looks like it's just hovering.