It may be best for accessibility options to have a shower curtain. If your mother gets to the point where she needs assistance, shower doors will be a hindrance since the opening will never be more than about 34" Also consider grab bars: if you are redrywalling and such put wood blocking behind the walls so grab bars can be added. Consider doing a pedestal sink with separate storage. Or, I got a 30" Kraftmaid vanity will all plywood construction for $169 + $100 delivery. It was new surplus. The lighting may have to be brighter than you would use yourself. Consider overlighting the bath a bit and putting it on a dimmer. She may also like a heat lamp.

Very welcoming, warm, and cozy! Kudos to your wife and you for the tile choices. I love the way you and/or your tiler chose to place the tiles. The floor tiles are fun, the way they form diamonds, instead of making random wavy directions. I also love the shower tiles in a vertical running bond pattern. Again, they were not randomly lain, the tiler gave some thought to direction of the flow of the grain. I especially like that you tiled to the ceiling. I admire the bits of shiny bling, especially the mirror. It is very pretty, balancing the masculine "rock" messages sent out by the dark tile on the floor right in front of the vanity. My DH and I will be turning our only full bath into a shower-only and it is just a bit bigger than your room. It is good to see that you, after giving up the master to her mom, can find a bit of luxury in your smaller guest bathroom!

there's lots of bathroom combinations that people don't mind. what guest I do have all agree it's a better solution since you can hardly turn around it it. and in combing the two my kids can have a tub of there own.

what's wrong with the current tile floor? this is a porcelain from Tilebar, it looks like limestone, which is a common partner to Fantasy Brown I like these Cavatina line too: for the shower, you could do a travertine, or find a porcelain that looks like it if you have any leftover Fantasy Brown, us it for a shelf in the niche, on top of any pony wall, or for the shower curb. you could also find a porcelain tile like they show here in the photo (outside) for the shower walls, you could do the 12x24 tiles on the wall, or go w/a 3x12 or 4x12 type of subway. or, any of these styles would also work do a gray subway tile for shower, maybe penny rounds for the shower floor, and the large 24x24 tile outside BTW, this is another poster's shower, but it gives you an idea of what would work in yours too