ok but the only thing i could do was something on the back and i cant think of what to do

Eh, That needs more effort.
Almost NO detail. (at least you did something with the mouth)
Were the eyes supposed to be red??
I would pay 500 TC.

mostly what i was doing with this head was trying different ways to use the drop shadow effect

Id say about 700-800 tc

These are the ones noobs seem to favour because they look cool without much detail and are cheap because of the lack of detail.

Its hard to sell something comical and cartoony for anything up from 1k.

abput 300-400, not much detail. its only a red backround..., and mouth, teeth. eyes,