My soaker tub is set up identically to this. Instead of my wrought iron shelf, I would love to do a built in. I've also been torn with beadboard vs. tile for the front of the tub. Turns out I love the beadboard and its cheaper!
Loving the wire baskets for linens! Great use of space. Small bathnroom design with built-in shelves with backs of shelves painted black, wire baskets, ivory bath towels, wire & wood wastebasket and vintage bottles.