It's not that bad actually!! I like it!!
I hope you don't mind me critiquing tho ((i figured since ur doing this for practice you might want some advice?? (not that im an expert but these are just some things i noticed))
So i noticed that the jawline is a bit too long; I'm guessing you used a circle right? You might've started the head shape from both sides of the circle like this right?;
that usually only works when the character you're drawing is facing forward, but when you drew Corey, his face is at almost a side view, so the head shape will start from like 1/3 way in the circle like this;
Also, with the chest and arm, i noticed that corey's left arm is drawn over his torso, but once again thats really only if the character is facing forward, but with this point of view the left arm is drawn more behind the chest like this;
and lastly, the thumb is too high up next to the other fingers, causing it too look like an extra finger, but drawing a capital L-like shape from the index finger, like this might help!!;
But overall it's not a fail!!! The eyes looks a m a z i n g and matches Corey perfectly!! The way they're thin and the lining makes him look very cocky and masculine!! Also the hair is pretty good as well!! As well as the muscles and abs!!!! And omg the facial experssion im am in such loVE tYSMM!!!
I hope i didn't offend you or anything,these are merely my opinions and what i thought would help!!!! I'll send you 2 ocs i have if you wanna try using anything i mentioned?? ((I'm sending one girl and one boy so you have more of a choice this time aaa))