Steampunk Portrait Study, Asking for help

[mertgenccinar]

Hello. I'am currently new in Crimson Daggers. I know I'am very late to be a member of this forum but i hope everythings gonna be okay :) I wanted to share my W.I.P. portrait piece at this step because i need help and different opinions for almost everything. I used referance for portrait but i changed it after decide to do long-faced old engineer. I think it's more characteristic for steampunk atmoshpere.

Also i want add some background (rusty and old pipes, blackboard with some formula written on it or library with some little statues)

C & C allways appreciated :)

Thanks!