Using this exact image as reference, keep everything unchanged — the woman, her pose, face, hair, black lace dress, jewelry, the cake with "30" candles, the table, the balloons, the wooden slatted wall, the warm backlighting, the ribbon bows, and the confetti on the table.
The only change: remove the plain white ceiling visible at the very top of the frame. Extend the wooden slatted wall with warm backlighting all the way up to the top edge of the frame, so no ceiling is visible — the wooden wall should fill the entire background from top to bottom.
Do not change anything else — the woman, dress, jewelry, cake, table, balloons, and overall lighting must remain exactly as they are.
