Thank you so much for your advice! Do you have a pale gray or taupe recommendation that you've used in the past that would work well?

I recently remodeled and changed the double sinks for one sink plus a nice area where I can sit down for my ablutions. I wanted the increased counter space as well as the increased storage space. I don't spend that much time over a sink anyway so I don't see what the big deal is to have one sink. I especially think it is ridiculous when I see two sinks crammed into a small vanity with a tiny bit of counter space - so big deal you have a dysfunctional bathroom space but you have two sinks. I remodeled for my needs and my aesthetic vision. I am not planning to move and if someone doesn't like it, they can fairly easily just reconnect the plumbing and add the second sink. In terms of mirror treatment, I did a ceiling to counter wall to wall mirror but then put two different mirror treatments above the sink and the "grooming area". The wall to wall mirrors lightens and enlarges my rather small space and the two different mirror treatments differentiate it as well. I also have two Art Deco style sconces above the sink and a version a makeup lighting above the grooming sit down area.

I would use a large mirror across the whole space, remove the medicine cabinet, and use two side sconces and lighting above the mirror. The space isn't really large enough for two mirrors. With a new vanity you may have better storage and not need the medicine cabinet. To me, the shower tile doesn't work well with the shower floor or the bathroom floors. I'd use a solid white tile for the shower walls, which would be brighter than your floors and look good with the small blue tiles.

It looks like one large mirror would most likely work the best here. If you had two sinks then you could easily do two mirrors.