It is a bit unbalanced, seeing there's in total six spots for wall trophies around the ship, and only one floor trophy, while you accumulate far more floor trophies far faster and far easier than wall trophies just by doing your storyline missions. So far I've thought there would eventually be more wall options than are presently in.
(I don't really consider the ship models to be good ones. They're just too big and awkward. Who'd want to sit under my Defiant model, a massive golden brick that could come down and crush your spine any moment? Maybe if they added a set of scaling sub options there. Large. Medium. Small. And perhaps a choice between the gold and actual colors. I know PIcard's were golden, but Sisko had a Miranda and a Nebula in his office that were painted properly.)
Also, kind of surprised there wasn't a trophy for the Trace Tracker accolade. Not even a new costume option unlocked. ("I scanned every cubic meter of this spiral arm, and all I got was this crummy T-shirt.")