It's an excellent piece, with good lighting and great sculptural skill. However, I notice that some parts are very detailed while others lack that detail, but I understand this due to time constraints.
The weapon, its components, and ammunition are well captured; excellent work. You just need to keep practicing to further refine your models, as you already have a good grasp of the weapon's proportions.
The idea you wanted to convey is well done, and the speed effect you created with the stars is great. The only feedback I could give you, or that I would have liked to see, is a more complete grayscale, since it's only black and white and I feel like some elements are lost.
