Omega Destroyers by M Tarling
Whitestar 90 by Kier Darby
Jumpgate by bcelestia converted from .3ds files found on Celestia Motherlode
for you nitpickers...If you have good enough resolution you can make out the names on the Earthforce ships. Heracles, Furies Juno, Vesta, Nemesis, and Pollux.
I rendered this almost a year ago, but didn't know enough about my programs to get it to look good. Well at least passable.