strict preservation lighting adjustments only maintain the existing image with absolute precision do not modify redesign add remove or alter any architectural elements geometry proportions dimensions materials textures furniture objects camera angle framing or composition preserve all existing colours finishes and material tones exactly as they are 1 reduce the existing wall light intensity subtly lower the brightness and intensity of the existing wall light source to create a very soft minimal illumination with gentle natural looking shadows retain the existing light fixture exactly as it is avoid excessive brightness strong light spill blown out highlights or harsh shadow edges the result should feel understated soft and realistic 2 introduce a second invisible ceiling light source add one additional subtle ambient light source originating from the ceiling direction as if an existing ceiling light were switched on but completely hidden from the camera do not create reveal or render any ceiling light fixture bulb downlight lighting hardware ceiling opening or other new physical element the ceiling itself must remain unchanged this additional light should provide a very gentle diffused wash of illumination introducing only a faint natural shift in light across the existing space it should blend seamlessly with the reduced wall lighting creating soft tonal variation and extremely subtle shadows without producing dramatic contrast sharp shadow lines visible beams or obvious directional lighting final requirements lighting adjustments only absolutely no architectural or geometric changes preserve all original colours material properties and textures keep the existing wall light fixture unchanged while reducing its emitted light add only a very subtle invisible ceiling originating light contribution maintain soft realistic illumination with delicate shadows and minimal contrast do not introduce any new visible light sources or physical objects avoid overexposure colour shifts artificial glow dramatic lighting effects or changes to the original atmosphere target result the original image should remain virtually identical in every respect except for the lighting the wall light is slightly dimmer while a second imperceptible ceiling originating light gently lifts the overall illumination and adds a very subtle hue and soft shadowing the result must look natural restrained photorealistic and faithful to the original render
