Generate a realistic interior design concept render on Flux.1 Kontext that a client could actually approve

ROOM AND FUNCTION
a compact home-office nook for two people doing video calls and focused writing work, viewed from eye-level, standing in the doorway looking toward the far corner desk so the room's actual layout and traffic flow are legible, not a cropped, decorative-only angle.

SPATIAL HONESTY
Render the room at roughly 3 by 2.5 meters, ceiling height about 2.6 meters — furniture and fixtures scaled believably relative to a real human body and real doorway proportions, since an oversized sofa or an impossibly large window is the fastest way for a client to distrust a concept render as unbuildable fantasy rather than an actual design proposal.

MATERIALS AND FINISHES
matte white oak floating shelves, a warm walnut desk, and a soft bouclé accent chair, each rendered with its real, distinguishing physical texture — the actual grain, sheen, or roughness that finish would have in person, not a generic smooth digital surface standing in for it.

FURNITURE AND FIXTURES
a compact L-shaped desk under the window, a single accent chair in the corner, and a slim bookshelf along the side wall, arranged so the walking path through the room stays clear and the arrangement reflects how the room described in a compact home-office nook for two people doing video calls and focused writing work would actually be used day to day, not simply staged for the most photogenic angle.

LIGHTING
afternoon daylight through a single tall window on the left, plus a warm brass desk lamp for evening work. Distinguish clearly between natural light sources and artificial fixtures in how each renders — daylight through a window should read differently in color temperature and falloff than a warm interior lamp, and both should cast physically consistent shadows given the room's actual layout.

COLOR PALETTE
warm oatmeal walls, walnut desk left natural, sage-green accent chair as the single saturated color, applied to specific named surfaces (walls, cabinetry, textiles) rather than as a vague overall mood, so a client can trace exactly which element carries which color.

WHAT THE RENDER SHOULD NOT SHOW
Since there is no negative-prompt field, state this positively: the room contains only the furniture, fixtures, and finishes named above — no unrelated decorative clutter beyond what's listed, no people, no visible brand logos on any product, and no design element inconsistent with Japandi — quiet, warm-toned minimalism with visible natural wood grain.

STYLE REFERENCE
Japandi — quiet, warm-toned minimalism with visible natural wood grain, held consistently across every surface and object in the room — a single strong sofa in that style surrounded by mismatched, generically modern accessories reads as an unfinished concept, not a cohesive design.

CHECK BEFORE FINALIZING
Walk the room mentally from the doorway to its far wall and confirm nothing floats, clips through another surface, or sits at an implausible height relative to the furniture beside it — spatial errors like a floating rug edge or a lamp taller than the doorway are the details that undermine a client's confidence in an otherwise beautiful render.

OUTPUT
One photorealistic interior render at 16:9 for a client presentation deck, spatially plausible and materially specific enough that a contractor could reasonably estimate a real build from it.