abstract background brown cereal cereals food grain grains integral monocot nutrition plant plants rice saavem seed texture equilateral green horizontal padded padding polyhedron pyramid Pyramids quilting triangle triangles triangular vertical black blue climate cloud clouds drop drops gray nature rain sky water weather white winter autumn color colour gold leaf maple orange pattern ray sun tree yellow broke broken crystal glass hit impact line lines piece pieces shape shatter shattered smash architecture backgrounds cover house patterns roof roofing structure structures textures tiles top