Ah, my favourite class, though I really don't buy it that it's the same Lexington as the Constitution version, what with the completely different components there's not a single panel shared between the Enterprise class and the Lexington class. Still an interesting bash, though I would give it the Lexington pylons, those Enterprise pylons still look too flimsy for the Kodiak nacelles at that size, and I'd lower the neck a little bit, to make it more of a lead-into the final Lexington class.
BTW from whence did you find that Moonraker Lexington? I've got a ship based on it by him or at least from his parts called the Starlance I think it is, but it's got a cut-out saucer and weird nacelles with a torpedo pod for a secondary hull.