Realistic portrait for Bluetippedwolf

Critique wanted!

My first try at serious realism! I still need improvement, but I think this is a pretty solid first try. If you guys see anything that bothers you about this, please point it out! I'd like to improve my realism skills, since I think that'd be helpful with all my art.

I'm also doing $25 artistic freedom commissions right now, details here: https://www.weasyl.com/journal/113315/25-wing-its If you want a realism portrait like this one, just note it in your comment and you can get one for the same $25 price tag. :)