abstract art artistic artwork background blended brushstrokes color coloration colored colour coloured decorative design distinctive downstrokes edged edges green interconnected interlinked intermeshed light lined lines mixed multisurfaced paint painted painting patchy patterns perspectives shaped shapes style surface surfaces surfacing texture textured textures thick thin wallpaper angles appearance brown brush strokes coated coating colors colours grooved grooves heavy rough streaked streaks treatment brush stroke cheap grunge messy stain stained wall backdrop canvas grungy hue series shade tone tones colorful colourful connected connections contoured contours contrast contrasting details interlaced interwoven multicoloured patterned shape swirling swirls vibrant