abstract appearance background color colored colors colour coloured colours cover covered covering curved curves grain grained mustard muted panel paneling panelling pattern patterned patterns smooth soft striped stripes surface surfaced surfaces texture textured textures uneven wall wallpaper architectural architecture basic brick brick-wall bricks crack cracked cracks exterior external rough solid standard strength variation varied various angles brown building contrast contrasting corrosion corrugated corrugations dark decay deterioration elements metal old perspectives rust rusty variations wearing weathering craked fence gloss glossy gray grey Australian bare bark branches contours cream edges gnarled layers lines Melaleuca mottled paperbark paperbark tree shadows shapes shedding sunlight tree tree trunk trunk wood