You could remove some of the fuel tank and add a deut reactor.
Oh, and a reactor/generator, ships tend to work better when they have power.
Maybe some fighters in the hangar or a nippy ltd logo decoed onto the fuel tank.
Add something to the DEUT tank and hanger walls. they look blank and very dull.
meh tbh im not sure well people are around 2 meters high but are not 2 meters wide which is the problem as a square is equal either side. i measured the width instead of the height so it would be half of the actual length. i think it is easier to have 1 pixel as 2m instead.
I'm suddenly very confused about the scale of your ships, all your old qrtz armoured ships I assumed were at a scale of 1px = 2m because people were 1 pixel high. Now your people are still 1 pixel high, but the scale is 1px = 1m.