abstract artwork background blended bright colors coloured connected connections contours contrasting decorative design details edged edges interconnected interlinked interwoven light lines marbling multicolored multicoloured oil-paint paint paper patterns perspectives procedure process randomn shapes style surface surfaced surfaces swirling swirls technique textured textures thick thin traditional vibrant visual-arts vivid wallpaper backdrop color colored colorful colour colourful colours contoured contrast interlaced intermeshed shape shaped texture angle angled angles art artistic basic black brown direction distinctive geometric geometrical linked links matrix mosaic squared squares straw yellow