For a first go, you have done very good
Maybe a bit more shading, but apart from that, it look good to me.
I want to do the Blackhawk type figure i have, as a nubian, like in the comic, but i'm still working on my bronzed flesh
not happy with it yet.
Since i have two of them, i can do the other one that way, once i am happy enough, with the way i do my flesh.