colorful lights, bokeh and glittering sparkles in pastel blue, green and yellow gradient background

abstract anniversary art artwork backdrop backdrops background backgrounds banner banners birthday blue blurred blurring blurry blurs bokeh bright brilliant card celebrate celebration christmas colorful colors colourful colours cover cyan decoration decorative design digital effect festival festive glisten glistening glittering glitters glittery glow glowing gradient graphic graphics green happy holiday holidays invitation light lighting lights merry new panoramic pastel pastels postcard poster season seasonal shimmer shimmering shining shiny spark sparkle sparkles sparks template vibrant wallpaper wedding wide xmas year yellow