Nice
the shading is on point, the colours are good and the bits that are ripped and some of the implants look very realistic,
you should be proud very nice work.

Seeing as you're demanding a post, here it is.

The only things that I can really think to comment on is that the ear-hole on the left side of the head needs more evidence that there was once an ear there, as it's kinda ambiguous.
The other thing is that the entire head seems very light, and softly coloured. I don't know if it's intentional or not, or maybe just a function of my monitors, but it seems rather faded.

That looks good but you can do better

Thanks for the comments guys, every piece of critique helps me improve the piece as a whole. next up: MOAR DEPTH!


also:

^^^^ that is an example of bad critique. presents a complaint "you can do better" and a compliment "that looks good" but presents no possible improvement to fix the complaint.

always strive to improve your critique skill, because it helps us improve as artists.

It looks fairly blurry to me. Many of the lines can stand to be more defined.
The mapping is okay from what I can tell, though I haven't looked at a sphere of it. Maybe the face will be too long though, you might want to watch for that. It also needs more depth in areas. The side 'ear' thing is pretty flat.
The tear on the cheek next to the mouth looks like it's rotated counter clockwise a bit too much. Maybe check it ingame and see if it needs to be rotated clockwise a bit.
I'm not a fan of his/her facial expression. I would think all that damage and machinery on their face would make them angry or in pain. However, the face remains fairly calm looking.
Add more gore to it! It looks like it needs some more blood due to all the scratches and other various damage sustained to it. If not blood, maybe more redness on the skin where the robotic parts are.
I'm a fan of the brain thing on the back, it's really well done.

Overall it's pretty good. Better than a lot of the art boards recent stuff. It has some originality with the back brain display and has potential to be a great head.

thanks wafflez. as for the expression, I was imagining all of these as old wounds. the character has since then numbed the pain, and is now apathetic about his horrible up-bringing.

I'd love to get more critique like LWafflez. that is extremely helpful.