Examples to make your own
Your idea
Refresh a living room using my reference: keep the window and oak floor, replace the sofa with a green fabric sofa.
A more useful prompt
Using the room reference attached in the image editor, preserve the existing window, oak floor and room proportions. Replace only the sofa with a green fabric sofa. Keep the original viewing position and daylight direction, with plausible furniture scale and clear circulation. Treat this as a furnishing refresh, not a new room layout.
Your idea
Concept for a reading corner with an oak chair, a linen cushion and a floor lamp against a warm white wall.
A more useful prompt
Interior concept visualization of a reading corner with one oak chair, a linen cushion and a floor lamp against a warm white wall. Use a three-quarter view that shows the seat and the space around it. Propose soft daylight with a restrained warm material palette. Keep the composition simple and label the arrangement as a concept rather than an existing room.
Separate fixed features from changes
Describe doors, windows, built-ins and room proportions as preservation requirements. Then list the furniture, palette and lighting changes. A precise refresh brief helps avoid accidentally moving a window when you only meant to change the curtains.
Treat the result as a design study
Review circulation, furniture scale, door clearance and daylight direction in the resulting image. A visual concept is not a measured floor plan or proof that a structural change can be built. Keep existing conditions separate from proposed design choices.