I changed my design to have the skull higher up and have the robots eyes be visible and I might give it a headdress made out of scrap metal (I don't have a concept to show at the moment but if anyone of you have any tips on color and shading metal/other materials in realistic ways and creating forms/shapes that appropriately use my resolution size please share

this is the concept of a character i want to make that is a robot with a human skull screwed onto its face and i want to give it a gritty falling apart look as if it was made out of computer parts and junk and i want it to be in pixel art but still realistic but i dont know were to start

i made some tweaks and i think its pretty much done what do you think?

i added some scales but i looks too cartoony :/