abstract background blended bubbles bubbling color colored colors colour coloured colours connected connections contoured contours contrast contrasting dark decorative design details edged edges interconnected interlinked intermeshed interwoven light lines marble marbling patterns perspectives shapes style swirling swirls texture textures thick thin vibrant wallpaper appearances arid Cacti cactus clumps clusters coloring colouring danger display edge flora garden garden-display garden-plants irregular leaves ornamental perennials plants pointed protection shape sharp short-spikes small-spines spikes spines spiny succulents surface surfaces unusual dangers backdrop blue interlaced pink shaped surfaced textured appearance Australian bare bark brown cracked cracks dry eucalypt eucalypts gray grey grooves layers mottled peeling rough self-shedding shadows shedding smooth sunlight tree tree trunk trunk uneven variations wood