abstract blurred hearts, sparkles and bubbles in pastel blue, green and yellow gradient background

abstract anniversary art backdrop backdrops background backgrounds banner banners birthday blue blurred blurring blurry blurs bokeh bright brilliant bubble bubbles card celebration colorful colors colourful colours cover cyan day decor decoration decorative deep depth design festive flicker flickering glisten glistening glitter glittering glittery glow glowing gradient graphic graphics green happiness happy hearts holiday holidays invitation light lighting love lovely lover lovers loves mothers pastel pastels postcard poster shining shiny sparkle sparkles sparkling sparks stars template valentine valentines wallpaper wedding yellow