复古3D渲染红棕色天鹅绒幕布舞台剧场背景

3D rendered illustration, main color scheme of red and wooden brown, central red curtain symmetrically unfolded, wooden floor in front of the curtain, solemn and formal atmosphere, detailed curtain texture, simple background focusing on curtain and floor, realistic and three-dimensional visual effect, conveying the emotion and information of a stage performance or important event about to begin