Recently, we finished a bathroom in an old Victorian home. The owner was tired of the look of the tub/shower module and wanted a tiled shower.
Before:
To our surprise during demolition, we found that years ago, a previous owner had sawn through all of the floor joists and many studs in the bathroom walls in order to get plumbing and HVAC through to the current locations. Definitely a case of “Do Not Try This At Home.” 
We relocated the plumbing pipes and HVAC to restore structural stability.
Once the structural issues were covered, it was on to creating a gorgeous main bath for the owner to enjoy. To go with her original woodwork found throughout the home, the owner chose natural cherry cabinetry that would get richer with time, just as her house’s woodwork has. We also managed to strip her door on the bathroom side (previously painted white) and stain it to match the existing woodwork found throughout the house. The trim in the bathroom didn’t match the rest of the house, so we duplicated the trim that was on the other side of the door.
After:
The colors of the cabinetry are found in the floor and shower tile, pulling everything together. We even found a paint color to match one of the colors in the glass mosaic.
To maintain the openness of the bathroom, the vanity wall was used as an accent wall, keeping the dark color on only one wall, and creating a focal point at the sink. Also, we replaced the window that was in the shower with a waterproof window so that the owner can enjoy a nice, cool breeze.