backdrop background berlin cold floating floe floes form forms frost frozen germany ice ice floe icy pattern patterns river sheet of ice spree structure structures texture textures winter art wall fill space paint paint texture wall texture arrangement bush flower flowering plant green horizontal leaf leafs nature plant regular Robinia robinia leafs row rows Terrestrial plant tree closeup frozen puddle water abstract art artistic arty black blended brown circles color colors colour colours cream decoration decorative design detailed detailed patterns greenery image images interconnected intermeshed interwoven intricate intricate patterns kaleidoscopic patterns lacy light lines mandala perspectives radiating shapes starbursts tiles vibrancy vibrant wallpaper white blue colored coloured glittering red reflective shiny style