@ladymito My thoughts would be to raise the top floor closer to the height of the bridge and the oriel (right of screenshot) and adjust the middle floor accordingly.

This is the rough concept I did for Omar ( @dostovel), subject to Vadim’s yes or no of course. It’s in the Google Drive under Scenes>Interior_>Images>Reference>Cool Concept Arts.
I raised the floor to match the bridge floor in the block out model, because as it was (to me) it look rather a waste of space/ridiculous that you’d have to walk up and down a set of stairs to cross the bridge and then up another step or two to own the oriel window. So I leveled the floor to match the bridge floor.
Hopefully this might help you. Apologies if it seems a bit to pedantic.
You really should be proud of your waterwheel, it’s an amazing, detailed, moving artwork.