I don't really care for the deflector dish idea, or any background history that makes her some very old design: She looks too new, as if incorporating some design elements of the 2270s fleet, as if it were a prelude to things to come. Also, thanks to WZ in addressing the issue, if it's a small ship, then the Constitution-class would be smaller, if you think about the window sizes and the bridge module.
But despite those nitpicks, I still like the design. It needs a bit more work in my opinion, that's all. The Okinawa-class has been one of my favorite frigate designs, so I'm bound to analyze it here and there... Maybe put a D in the registry? Something like NCC-D305? Sort of an allusion to TAS registry, perhaps. *shrug*
However, as she's released, I guess I'll have to make do with what I have, and this is still good enough. You've put quite an effort into her.