The RP background I have in my head is that the Ulysses class is rather old. These big old dinosaurs are more mobile fortress than a front line vessel. It is defiantly a class of super capital ship, but barge size might be pushing things. It will probably be a little smaller than that, but it will certainly be bigger than a juggernaut.
I am going to finish the engines and attach them. They will make the ship the rough 20% longer and that should help the feeling of stubbyness.
@Turkish: No textures for right now. They do not work when I convert the file to a format GMAX or Milkshape can read.
@frozen: Thank you for the detailed feedback. I had always planned on modeling a Liberty star to the bow but I have been saving it for latter as a finishing touch. I'll try the gun thing, but in my head I was picturing the razor on the front bow of the liberty dread. Each of those platforms on the front mount one of those. Thats how I was thinking in terms of scale, but that can always be adjusted later.