All of the games are undoubtedly great, I've played all of them, even Daggerfall, where you could actually play as a naked character, however, Oblivion is the best one by me, even though the Hammerfell story was a bit better.
I find this rather weird, I would suggest adding eyelashes and removing the pink skin (Or making it more visible) in the corner of the eye. It makes the "eyeball" look like it's small, round and about to fall out.
Looking good, it appears fitting more for a wraith, than an Orc, but it doesn't matter, the user can use it for whatever he/she wants. To be fair though, If there's not three fangs, the two ones that I see appears to be on one side of the head only.
Drawing Icons isn't really anything the I can teach you, do like I did, participate in Contests, get last spot, participate again, look at the tutorial section, watch Mr. Goblins' live-stream, and after some time, you should be good to go.