Wow what a great artwork! The lighting and shading is top and I just love this clean-cut look!
The only critique I'd have is that the small teeth are a little too detailed for the rest of the lineart, I'd either leave them out or make the mouth bigger in general. Also the bow and the clubs symbol have a quite similar shade of red and it makes them fade a bit into each other, which is a little confusing at first glance.