I dont mod(dont know how to), so just thought I'd throw a couple ideas out.

When things are being built, make it so they are skeletal framework, with sparks coming from them, then add detail as they become more complete, until they are completed. Like 5 stages of development. It seems tacky the way they "fill up" like a glass of water.

Also, frigate factories and capital ship factories seem very bland looking. Adding structures to them with little lights and windows(like on ships) would look much better.

Sorry bout the brutal grammar.