Make the bed, clear the nightstands, and photograph the room from the doorway or a corner so the bed wall and at least one window are visible. Shoot during the day with the curtains open. A clean, level shot gives the AI a clear read of the room, so the redesign concentrates on finishes rather than on clutter.
Choose the Luxury style, or Art Deco for a moodier take, and add precise instructions: "keep the window and ceiling height, add a tall channel-tufted velvet headboard, white hotel bedding, brass wall sconces on both sides, and dark green walls." Naming materials such as velvet, brass, and oak gets more useful results than words like fancy or expensive.
Generate a light version and a dark version of the same room, then a third with paneling behind the bed. Compare them on the same screen. Many people find that one change, often the headboard wall, carries most of the luxury effect, which tells you exactly where to spend first.