I'm always impressed when people can use Photoshop and make it look like they were using real paint. It always leaves me guessing and questioning the reliability of my eyeballs. haha
The details of Sora's clothes and hair are incredibly well done, but the only thing that seems off to me is his left palm. I'm no anatomy expert, but maybe if the hand was higher up or if the wrist was a bit lower + a few small tweaks I think everything would be the foreshortening effect you were going for. It's tricky stuff but I can tell that you'll get there in no time. :)
Keep it up!