TKInteriors

Hi! I would be grateful for help in achieving a ray trace of a white interior. I could explain for days the adjustments to materials and lighting I've attempted with no success. I am open to any help someone can provide. The first image is the rendering. The second is with a light (15w) inside the shower. The third is without the light (15w) inside the shower. These traces are five minutes or less but letting it run longer doesn't change the result. Kind regards, Tamela