looks like Bruce, even from the thumbnail!
your proportions seem ok to me, but your details are a bit strange:
The eyelashes, the eyebrows and the lipdetails make him look more feminine than he is.
Just drop the eyelashes, make the eyebrows a bit fuzzier and lighter and add bags under his eyes and should get more likeness
I just took a break to post this.
But sometimes I also draw stuff
Bloody hell that has a lot of contrast!
Is there a reason for you to work in such extreme gamuts so early? Pure Black and Pure White should be avoided until the end of a piece, and even then only on particular areas. BUT if this painting is for a specific style, then maybe the proportions and distribution of value just needs readjusting.
As for the eyes (sorry for the shitty edit, i used my trackpad):
(I think I went a little far with the eye, but you get the drift.)