interior design of a premium nail salon called caoba warm minimalist aesthetic elegant boutique beauty space instagrammable design soft organic shapes neutral warm color palette inspired by mahogany wood tones caoba beige sand ivory cream warm taupe and soft caramel tones indirect led lighting curved walls soft arches textured finishes microcement floors natural wood accents fabric sofas cozy atmosphere feminine and luxury branding layout left side 3 manicure stations with elegant tables and comfortable chairs nail polish display wall esmaltero with soft backlighting aesthetic shelving product display right front reception desk with organic curved shape warm materials design features instagrammable walls neon or soft led signage with brand caoba curved architectural elements soft arches ambient lighting accent lighting decorative plants modern luxury spa vibe boutique nail studio premium aesthetic constraints keep existing white framed windows keep existing ceiling plaf n design everything else can be redesigned style modern organic warm minimalism beauty spa luxury nail salon boutique interior high end commercial design cozy premium atmosphere soft shadows photorealistic render architectural visualization cinematic lighting ultra realistic 8k render