[tnpir4001]

@darth victor: I'm not seeing any clipping glitches in the explosions you mention, I think what you're seeing is actually shadows on the Warbird being cast by the Galaxy-class ships.

As for the two ships you mentioned, perspective can be a tricky thing, and it can be tough to determine size with non-canon classes. The ship that looks like a Galaxy definitely is, while the other ship is a Brisbane-class ship, which is about half the size of the Galaxy but which is much closer to the camera.

EDIT: also, the large ship in that one shot is Mark Kingsnorth's Ascension-class, his original designs called for a 1400-meter ship, but I upscaled it past that for most of these shots.