I made some major progress the last 2 hours
Now all ships have textures fitting for bridge-components and areas with windows, to indicate a that people are actally within the ship.
Of course you are right, i need to scale smaller ships down, lol. About the wings you noticed. Those should actually resemble solarsails. They are on both the Colonyship and on the Satellite, to generate supplies. Maybe you know the space station Babylon5, if not, do a quick google search. It has 6 of those "wings", too, which supply the station with power
Thanks for your comment though !
Attached is a new picture, only 30kb with updated Dread and StarBase, both superior to the "old" ones