well, I assume that is an orc.
The teeth are looking good, may be some metal ones or missing ones will help.
Ears look kinda elvish, make them more human/orcish.
Overall head is good, may be it needs wrinkles or a scar. May be some piercing in the eyebrow or something like that.
Texture is fine, but it needs some grayness in it. Too green.
I am in 10th grade, sophomore in high school, but if you don't take me serious, I'll make you.