Nice work!  Drawing yacht interiors is my profession, and I did quite a few classic ones, so I can appreciate a nice model. You asked for suggestions, so here are some: Perhaps you can make the roof of the deckhouse a little curved, with a slope to the front and some windows on the side of the deckhouse. That will give it a classic look.

Best regards,

Bopper.

-How can you improve things when you don't make mistakes?