enhance lighting realism of this image only treat the input image as final design documentation do not redesign replace reinterpret or regenerate any materials textures patterns or surfaces do not alter tile layout grout lines stone veining color tones or finish appearance do not add detail variation or texture that is not already present only improve lighting apply soft natural daylight balanced exposure and subtle global illumination maintain exact material fidelity and color accuracy output must match original materials exactly with lighting enhancement only
