Finished it up, this is my first painting i would consider completed
heres with glasses, no bg color (the best one IMO)

I tried a BG that was bluish to make his face pop and make it look less boring, expirimented for a while but really never got satisfied

heres without glasses, adding them in i had to pretty much wing it because there was practically no visual information on them in my reference (which was like 300x200px), so i consider this version the most accurate

@unclemuscles ty for critique holmes, i tried to take what you said and add in some more blue to that side of the face but idk, it didnt look right when i just dropped it in heavy, its in there now just super subtle. Im really new with color so i dont have complete control of the warm/cool duality in skin tones yet, i can send the psd if you think you can help
also, still can nobody guess who it is?