I think using your niches to display sculptures or art would be brilliant, you might need to change the light above to be a directional spot. Alternatively change the spot to a run of LED's (you can get colour changer ones) get a carpenter to create a 'new' back, 75mm smaller all around in the niches that 'floats' (split battens) and you could paint the new backs a mid murky blue (similar to what you would see in the sea on a calm cloudy day) commission some art (multy media, glass & or metal) to float equidistant in the space. Good luck

I didnt know Sherwin Williams paints and had to go look them up. They are nice. Good find! I would make the feature wall the TV wall, as the TV screen will help break up the colour.

Hi Caroline, i know what you mean, I'm not a fan of white tiles either because I have young kids but sometimes a room needs them to add light, the following photos all have a wood look feature tile but they all have white/cream somewhere. If you could imagine all of the floor and walls in your dark tile and then a lovely bright white background on just one wall and your wood look vanity I really think it would be fabulous! I think subway tiles may be too busy. A simple white tile would bring so much light into the room! you can add pendants , towels, decor to bring in more colour. Often when looking at tiles In showrooms they look like they will all go, but try and find a photo of the tile you've chosen laid as a whole wall, it often looks much different. I think you should go with what you love though!

I would be more worried about the roof design before I started looking at colours. It looks like it has numerous, troublesome box gutters, where two roofs run down to feed a single gutter in the middle. These then need a rain head and downpipe which are not very attractive. There is too much happening in your elevation, it needs to be cleaned up and simplified, probably with a simpler roof form. Think about how gutters, rain heads and downpipes will affect the front elevation. Save the random patchwork effect for when you are building a box-like warehouse in an industrial area where the varied colours are needed to break up the visual mass. Just as I can use word-processor software doesn't mean I can write a best selling book, and I think the same applies to 3D modelling software. Best of luck, Dr Retro of Dr Retro House Calls