I think the back of those models could have a bit more details. Like, what you did with the blockade runner, those ring-like elements, or hardpoints for turrets. Otherwise it looks nice.
This ship has an interesting profile when viewed from the top or bottom, more so from the top. The wings look like that of an insect, akin to that of one of those ultra-tiny flies in real life whose wings are oddly huge for their body. I quite like the look! I think it's a good start, just needs some refinement. Like Sombra mentioned, this little number might benefit similar aesthetics from your blocade runner ship.