enhance this built in arched niche cabinetry rendering into a highly realistic luxury interior scene while keeping the exact arch shape and overall cabinet layout unchanged add depth dimension and realism to the stone surround by transforming it into a soft white light warm gray natural stone with authentic texture subtle movement realistic veining grout lines shadowing and varied tonal depth the stone should feel high end and architectural similar to handmade limestone or textured travertine slabs with soft natural imperfections increase the realism of the arch by adding soft shadowing and depth where the arch curves inward add realistic recessed detailing so the niche feels built into the wall rather than flat keep the arch exactly as shown enhance the floating wood shelves with realistic wood grain warm underlighting beneath each shelf and subtle thickness shadowing for a more custom built in appearance improve the walnut cabinetry finish with richer natural wood variation realistic grain texture soft matte finish and elevated custom cabinetry detailing upgrade the countertop to a realistic light quartz or natural stone with soft veining and believable reflections add realistic ambient lighting throughout the scene with warm architectural lighting soft shadows and gentle highlights for a polished designer look keep the design clean neutral organic and high end modern do not change the layout proportions or arch detail