abstract background chaos colors colours complexity computer generated digital Fractal graphic illustration infinity julia set mathematics pattern repetition science self-similar self-similarity spiral technology texture turbulence vortex wallpaper water country countryside England english field grass Great Britain green hedge landscape lane meadow natural nature path peace rural shade shadow shady South Downs summer sunlight Sussex track trail trees view destination direction exercise exposed fun hill hillside leisure moor moorland people remote spring travel Trek walk walker walking wild amber Betula birch bracken brown copper dead dried ferns footpath forest heathland russet rusty trunks undergrowth woodland fire fireworks mandelbrot sparks stars balconies balcony building cascading creepers cutting edge edging gardener gardening height high highrise ladder man plants pruning safety safety-harness secure Singapore trimming vertical-gardening vertical-gardens wall-garden worker Alice Springs Australia bush central Australia desert-country desert-region dry gully hot inland outback ridge rocks rocky rough rugged scrub shrubbery sunshine terrain textures