(Gif18) Flat Periwinkle, Isles of Scilly, UK
(G17) Seashell
(G16) Helmet Shell
(G14)
(G15)
(G13) Slate Surface, Wales, UK
(G11) Abalone shell
(G12)
(G10)
(G9) Seashell
(G2) Pavements of Rome, Italy
(G3) Windows, Copenhagen, Denmark
(G1) Sunset, Russia