luxury cozy merry christmas stage background in black grey gold theme with bokeh sparkles decoration.

architecture reflection lighting darkness symmetry flooring ceiling evening design window light night stage glass wood iron wall luxury cozy gold dark black background grey theme bokeh sparkle decoration generative ai celebrate holiday festive party design stage podium stand platform stair black friday exclusive festival sale blank premium scene show room base studio empty pedestal mockup cylinder golden backdrop award elegant presentation minimal gray modern product display abstract showcase