abstract background equilateral green padded padding polyhedron pyramid Pyramids quilting saavem texture triangle triangles triangular art blend brush color colour crayon marker paint stroke backdrop concept curves decoration dream futuristic graphic pattern pink red ripples waves blue crowd figures orange people tree walk background image brown dominican republic grunge Santo Domingo terracotta urban decay wall clipart design element illustration ribbon smoke swirl colors drip glaze glazed pot textures wash architecture decay patterns urban walls