abstract appearance Australian background bare bark brown colors colours cracked cracks dry edge edges eucalypt eucalypts gray grey layers lines mottled rough shadows shapes smooth sunlight surface texture textured textures tree tree-trunk trunk uneven variations wallpaper white wood black close-up grooves peeling tree trunk angles clinging color colored colour coloured droplets drops hitting light moist moisture patterns puddles rain raindrops reflection reflections reflective round rounded splash splashes trickle trickling water weather wet winter wintry blended colorful colourful curved curves decorative design details feather-like feathery flowery interconnected interlinked interwoven perspectives petals pinkish shape shaped style thick thin vibrant contoured contours contrast contrasting edged purple blue bright brilliant circle circles circular merge merged merging red detailed green linear lined mosaic tiles orange pattern patterned wall