refine this existing bathroom render into a cohesive wabi sabi style do not change layout furniture sanitary equipment shower elements plumbing positions camera angle no additions no redesign style goal homogeneous calm warm wabi sabi atmosphere materials finishes warm textured walls limewash or soft mineral plaster in warm beige sand tones matte finish only natural variation and subtle imperfections floor finished with tiles natural earthy tone tiles also used only inside the shower area outside the shower walls remain continuous plaster no tiles shower do not add shelves niches benches lighting or accessories keep only what already exists no new elements realism improve material quality and texture realism accurate roughness and bump maps subtle plaster variation natural tile texture with slight imperfections soft realistic light interaction no glossy surfaces no oversaturation no hotel style luxury effect goal cohesive materials tactile surfaces warm serene authentic wabi sabi feeling enhancement only no structural or design reinterpretation
