You have a nice color scheme and design here. If I could suggest on thing, maybe you could make the wings blend in with the hull more and add somemore detail to the ship. Detail could be anything from greebles to plates on plates. Liam Kirwan (from the MOC Refinery)
you added this to the MOC refinery group, along with two other MOCs, so here is some feedback, a lot of my comments can apply to all of your MOCs. You need more structure to your builds. More bricks if you like! This is by far the best of the three MOCs you posted in the group as it has a hull and is more then just plates with windscreens and cool guns stuck on, in fact it has the basis of a good MOC, think about streamlining the ship, maybe have a look at some racing cars, sports cars or even limousines and try to bring some of the shapes you see on them into your builds.