I like him but he feels not gribbly enough/not emaciated enough to be a haemonculus for me.
Looks like an Archon that has dabbled but not a full underground flesh tinkerer.
The skull helmets in general look fantastic btw, how have you done them? I know the part I just can place it at all.
BTW to get the photos to show up in the post you have to post an IMG code from a hosting service.
I use photobucket (its free up to a certain amount of storage and I've had it years and am way off filling it), which means if you click share on the photo then you want the bottom of the links available.
I think flickr and various other hosting sites do much the same thing.
your work is awesome in general btw, your archon in particular which I spotted in the archon thread is wowzers!