Generate wall 2D graphic element ideas for a prison environment, combining modern, restrained, and natural elements. Imagine using materials like concrete, wood. Include abstract shapes, geometric patterns, natural motifs, or other elements to create a calm and inspiring atmosphere. Add green plants or plant walls. Use soft color palette. Add soft light by led stripes. Graphics should be suitable for a prison setting while providing visual comfort and aesthetics where everything is helping prisoners feel safe, calm and become better person. | Anything