for shading and coloring I'll give you a 10/10, nice job.

Anyway, the composition and proportions seem really off.
The eyes look too wide and the hair is kinda too flat on the head.
The composition is also weird. It looks like you cropped it, but very
awkwardly. You should really try to get the entire head in the piece,
not cropping out the top.

Other than that, I really like the armour. Wish I could see more of it tho.