You're very welcome. Happy I could help! Here's a photo of vein cut silver travertine and cross cut on the link below. You can do the shower or bath area in a 1 x 1 crystal clear 1" glass tile. See the one from the Ashland line in Crystal at hakatai.com. Just add a pretty vessel sink, and pick up a paint color from the travertine and you're done with a stunning bath. Add a framed photo of a tree or flower in a sepia tone with a dark frame to match the vanity. That's exactly what I'm doing so I'm biased...LOL! http://buy-travertine.com/images/silver_travertine_banner.jpg Here is a link that might be useful:

While I think the wood idea is a lovely compliment to the brown-gold veins in the granite,what concerns me is that if the only darker tones are in the granite and the vanity, it may stand out as not belonging in the space. I think I would be inclined to go with a painted vanity, but in more of a vanilla or something a bit warmer than white, to work with your tile. I would not do the walls the same color as the granite, but instead a darker shade of the color, for interest. What color will your faucets, lights and doorknobs, etc. be? You could also enrich the space by choosing a deep color for your towels.

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.

BBB link (although now that I know your vanity is 60", this will be too big) https://www.bedbathandbeyond.com/store/product/decorative-30-25-inch-x-42-25-inch-large-wall-mirror-in-silver/1041919644?skuId=41919644 Home Depot https://www.homedepot.com/p/Home-Decorators-Collection-24-35-in-W-x-35-35-in-L-Framed-Fog-Free-Wall-Mirror-in-Brushed-Nickel-81156/205577499 This might be a better size and it's fog free, which is nice.