I love your choices, and second the idea of adding some black trim in the white. I think that it would be amazing. Are you thinking of crackle tile in the shower? If so, double-check if that is ok. I a have crackle finish backsplash in my kitchen and the manufacturer recommended sealing the tile to prevent any stains from food splashes seeping in through the cracks. That makes me think that it might not be a great option for a wet installation like a shower. Hopefully someone more knowledgeable than I am can chime in.

I'm thinking along the lines of Kswl. With no natural light and a low ceiling, I'd go as light as possible. If you have one loose tile, your paint store can match the color exactly. Then you could have them add a small bit of white, which would lighten the almond and be a slight contrast and still set off the cabs. Then you could have any color scheme in accessories that you like. A friend of mine has a tiny bath with no windows. She bought an inexpensive print of an exterior view from a window and put it in old, sort of rustic wood frame. Then she hung a small mirror on the opposite wall. Presto! It looks like she has two windows and it enlarges the space.

I had the exact same problem. I picked out the vanity I wanted but did not think about the fact that it wasn't made to sit flush against the wall. I spent a month looking for something else, but in the end we decided to go with something shorter and have it not be against the wall. But we were going from 72" to 60" which is probably not workable in your mom's situation. I did find a lot of vanities that did have flat sides and could work in a corner, if you are willing to have the countertop fabricated. They just need to not have any trim detail on the top or bottom like the one you picked out does. I would just look at the ones without the pre-made tops. Because the pre-made top will still leave you with a slight gap because of the countertop overhang. This is an example: Avanity Modero which is sold everywhere, not just at Lowe's. The cabinet we ended up buying is an Avanity Madison which won't work for you, but I assume it is of similar quality. We are pretty happy with it. The drawers and doors have soft close but I do feel like the glides in my Ikea kitchen drawers are better quality. It is very pretty and I wanted a stained wood so I am really happy with our choice. If I had been willing to go with a painted finish, I think we might have stuck with the 72" Modero.

you don't have enough room for two bathrooms with the space that you have........ Maybe there is another option somewhere within your house.