Don - I see what BOTH you and Siara are saying. I agree, the model with the barely visible "under the hood" detail has a certain magic. It's like backstory in movies - maybe a fully rich story is never really shown more than a tiny tiny bit onscreen or in a book, but whatever the story, the flavor helped the author. So I get that and agree!
But I see what Siara is saying, and agree with that totally too - the bottom line with this model is, you want some detail that is magically behind the hull, but yet it doesn't have to be massive t have that special "real" effect. I bult a whole nose and stern p-hull. but just the top of the center part as you say. I added a gun platform very rough, so that looking thru the slot you would see "somtehing" - same for conning tower. I added frames with holes for the bow (ony on my display side, I cheated), and they are invisible, but a casual side glance and you can see "something" - worth it I think.