idk if its just the screen shot but the image is blurry. maybe clean that up. and if u can maybe add a glow effect to the red to make it look more alive or something like that
Dont blame it on gimp and i dont know whats up with u 2 but get rid of the seam make the visor bigger add some light coloring on the visors add shading and a buncha other stuff i dont wanna mention but i will once u finish these changes
The "visor" is much, much too high. Put it in the middle of the head.
The orange part would be a decent eye.
Get rid of the line through the middle of the front and back.