The right side of the room is looking towards the ocean. I plan to have a fan in the middle and would like lights on each side of the fan but not down lights. I will explore your suggestions. Thank you

custom made vanity and wall cabinets should only be needed if you have awkward sizes as an off the shelf cabinet allows you to see and touch the product and is often much more economical than custom made ...unless you need to keep some special supplies (eg 24 pack of toilet rolls?) i suggest that a base cabinet need only be 450-500 deep which is plenty for folded towels and drawers and the in wall cabinet about 150mm deep (including most of the cabinet inside the wall and only a small frame for doors and mirrors projecting out) but the in wall cabinet may depend on existing wall studs and electrical wiring so think about what you would put inside the cabinets and only have enough inside cabinet space for those items (maximum toilet roll or fat shampoo bottle about 120mm...in small bathrooms the extra floor space makes drying and dresssing much more comfortable and by rotating the shower in the family bathroom there would be less wet floor in the walkway and if the vanity in the ensuite is away from the corner you can allow space for a handtowel and/or a very convenient space to hang a hair dryer ...

Update. I now have a very happy and content cat who has independent access to a side garden which already had secure, dog-proof fencing. I found CatWorks in the Mornington Peninsula who were prepared to travel an hour to custom design and install a cat-proof roof. It does not look like a prison but actually enhances the veranda which was installed a couple of years ago. The veranda has black, powder-coated, aluminium balustrades and the fine, black, roof netting and black, metal frame complements the veranda with its forest backdrop. Amazing! CatWorks even created viewing posts/ladder on the central, supportive post and a massive climbing rope. The dog took a while getting used to the idea that the cat was going to be using his garden, too, but now they can both come and go in and out of the house. Added bonus: I have a shed in that garden where I do pottery and ceramics and I no longer limit my visits there as I no longer need to ensure all doors are securely closed behind me or isolate myself. We all come and go as we like. Freedom!

swinging doors need a much bigger space to open and block access to side walls unless they open outwards (also harder to waterproof) and you remove the car...we have a rear 2.4m wide roller door without any intention of driving through to the rear garden (although occasional rear car access doesn't cause too much harm to the grass) but the wider opening is so much better for more light and easy access with a wheelbarrow or lawnmower and we have a 1.2m narrow concrete path across the outside rear of the garage to extend the total floor area which is ideal for working with table saw etc i suggest you cost the roller door with or without controller as the twin hinged door with suitable handles and locks may not be any cheaper and far less convenient