Custom Character

Hi guys, first time picking up a pencil in nearly 10 years. I had some inspiration to create a character. Obvious area for improvement being proportions, but anything you would recommend. I was trying to go off a ragged look in the hair with a cheeky grin the eyes I found really difficult to get right but I was happy with it in the end.

Planning to do a full body model of this next, any bits of advice is definitely wanted and welcome thanks!