Nice! And a pretty ambitious piece if you're just getting started! Love the adaptation of the outfit.
In terms of critique there are lots of little things, but nothing huge that stands out above the others. If I had to pick though, I'd say do some work/studies with the head, face, and expressions. In my experience it's by far the best bang for your buck when it comes to effort vs reward. Nowhere near as hard as nailing hands, general body stuff etc (though to be clear, the hands aren't too bad here), and you get a lot for the effort, because the face is what most people focus on. You can get away with a LOT of other sins in a piece if you nail the face, head, and expression.
Really do love the jacket though, even if it's heavily referenced from elsewhere (no idea, haven't played Clair Obscure) you still executed it very well on this particular figure and pose.