use the provided photo as a fixed reference image the final result must match the exact layout of the input image do not change positions of furniture objects walls window floor tiles ceiling perspective or camera angle do not redesign or rearrange the room only improve materials lighting and realism while keeping every object in the same place and same size lighting warm natural sunlight coming through the window realistic soft shadows matching the current sun direction balanced exposure natural indoor brightness no artificial dramatic lighting no showroom effect keep existing arrangement desk remains exactly at the back wall two monitors stay in the same position and spacing office chair stays in same place and orientation pinboard stays on the left wall of the window two floating shelves stay on the right wall plant stays in the same corner rug keeps same size and placement visual improvement only enhance realism by better material textures wood fabric plastic more natural color tones slightly improved decor detail but without adding or moving furniture subtle lived in details small desk accessories important constraint this is not a redesign this is a photorealistic enhancement of the exact same room setup