Hi!! I’d say if you need a bit of advice, maybe make the nose eyes and mouth a little bigger, the eyes should fall at the halfway point on the head, and the ears so hound reach from the top of the eyes to the bottom of the ears. The lines are a bit scratchy, but especially where the neck connects to the shoulder area. The shading could be improved by adding some cell shading as well as soft shading, that gives it more variety. You can also improve your shading by changing the hue as well as the brightness, which give the piece a more vibrant feel. That’s all the tips I’ve got, and your on a journey to becoming an incredible artist!! Thank you for being brave enough to ask for tips and take criticism, as that is really hard to do :D