Awesome piece! I really like the setting and the way you used the negative space to your advantage! The piece doesn't feel noisy or cluttered and that allows the focal point to really shine!
I also really like the way you utilized the pallet! Everything feels distinct and is nicely colored!
That being said my only critique would be the line work. I feel that sometimes it can be a little too steep or sharp. I would generally suggest to try and make the slopes and curves a little smoother and a little more linear!
Regardless, you did a really good job! Well done!