looks very good so far but i would like it more if it had little bit darker green and not so lighty

What do you think, how much will it cost?

Take off the plate at the back. It'll be better.

I agree.
the plate seems a bit random at the moment.
It would make sense if you had made a full set, to link it to, where you could bring in the armour , but seeing as youve only made the head, the plate doesnt work.
also, the shaping doesnt do justice to the rest of the head. very generic next the awesome face.

also, the tatoo doesnt really mould to the face either.
seems like you got bored after you finished the face.

Still a great head, but could be improved on.