What Wyrmshadow said.
The lights look cool, but screw things up. They change the shade of the ground, and complicate the palette. I goofed around with this too on my x303, way more trouble then they are worth.
I would suggest less rocking in the attacks.
What is supposed to be civ colored?
The current frame size is 320x240. The max supported is 240x240. Find another unit you figure might be close to the same size, and model it after that. I know, my x303 was INSANELY large, but this was by request. I suspect a fighter should be ALOT smaller then a main battleship. Perhaps something close in size to a modern jet would work. I would guess that your current pixel count is 4 times the size of a typical fighter craft. You also have to remember to leave room in the scale for later larger craft. Make the fighters too big and the heavy craft look mis-sized. The other thing with size is the size of the map. I know it is hard to shrink a beautiful unit and hide much of the detail.
In the death anim, I would not leave part of the ship floating there. Looks a little odd... have it tumble off Maybe by shrinking the size down, which gives the illusion of receding in the distance. Some of the pieces in the death seem to float a little bit.
Is this unit going to be used as a space ship (naval unit) or air unit?
Mind sharing how this unit was made? Tools used. Original model, or extracted from a a game or?