here's some advice that may help!
your facial anatomy is quite good! I would say the only thing that causes a sort of "uncanny valley" effect would be the way the subject is staring directly at the camera with a lack of any specific emotion. it does feel uneasy but I think a way to fix it would be to zoom out and balance the negative space around the subject to give the viewer some breathing room.. something else i learned in photography that also applies to portraits is never have a direct light directly pointed at viewers face. it's a very unnatural lighting situation that we dont see in life that often. something that always works for me is a 3/4 direct light with bounce light from the opposing direction.
heres a quick little fix i did to give it some room. couldnt play with the lighting too much but i added a little extra light on one side of his face to balance out the colors just a tad. i also gave him just a hint of a smirk and i feel that gave him some personality.
this is all just opinions obviously so take it with a grain of salt. that being said if you see something that helped then awesome! also like i said, your facial anatomy is really on point! i'd put some time into colors and composition and you're starting to look professional