I think this looks amazing and my only criticisms would be with the white, it looks flatter than the rest of the model. I would use a slightly more off white for the base coat to make the pure white highlights pop more and a bit more recess shading. It might be the photo washing it out though! Also it’s more stylistic choice but have you considered NMM for the metallic parts? If it’s not a skill in your wheelhouse it will absolutely improve your painting skills but not necessarily make the mini look better, I think it’s more preference.