Wangjing Hyatt Hotel bathroom background wall

Quick answer：

The Wangjing Hyatt Hotel is a luxury hotel located in the Wangjing area of Beijing, China. The bathroom background wall refers to the decorative wall or surface in the bathroom of the hotel room. This could be part of the hotel's interior design, featuring modern aesthetics or traditional Chinese elements. Information on the specific design or materials used for this wall would depend on the hotel's interior decor and room type.