OP Please be clearer and define what is 1990's about them. What's too simple about them Polygon counts seem reasonable in the pre designed ships for a strategy game. Texturing is ok though there are improvements in the scaling of sub-surface textures that should improve issues with texture stretching on custom ships with scaled parts.
And if you don't think the the models are detailed enough you can design our own ships combining as many of the pre-made parts as your computer can handle in the ship editor. even create and save new parts out of the standard parts for future use.
Is there some graphics technique you would like them to use that they haven't?
The way your post reads at the moment it just looks like trolling, but I thought I'd give you the benefit of the doubt and see if you could expand upon the issue you have with the ships graphics.
