The color of the towels and decor can be changed. All models have high-quality UVW mapping, materials with logical names, and some items use the Turbosmooth smoothing modifier.
decor for the bathroom: https://3dsky.org/collection/shared/5179027 

The set includes: shaving razor, toothbrush, towel, Candyta shampoo, Candyta conditioner, Bedfordshire beard wax, Bedfordshire oil, David Beckham eau de toilette, Palermo scrub, Tom Ford shave cream, Tom Ford face toner, Clef shower gel, Zenyum toothpaste, niacinamide

When using OBJ, please apply MeshSmooth/TurboSmooth with 1-2 iterations. Scene in mm
For Corona render, it is recommended to use version no lower than 1.5, as the glossiness of the materials is set considering PBR.