using the provided image replace all exposed wall studs and framing with finished interior walls made of smooth drywall fully enclose the stairwell and landing walls while preserving the exact layout dimensions ceiling height stair geometry railings door openings and visible structural elements maintain realistic construction accuracy straight corners proper wall thickness and clean drywall seams match natural daylight direction and existing shadows for a photorealistic newly finished interior do not alter flooring stairs railings or add furniture decor trim or fixtures
