six sets of diagonal shining abstract background with blue, purple, pink, red and light green gradient

diagonal shining abstract background dark blue light green gradient simple modern colorful backdrop wallpaper banner copy space hompage six sets purple pink rdark reddark red abstract art backdrop background banner beautiful blur bright card color colorful concept cover creative decoration decorative design digital dynamic elegant flyer futuristic geometric glow gradient graphic greeting light green line minimal modern pastel pattern pink poster shiny smooth soft space style template texture trendy vector vibrant wallpaper web