vertical 4k background featuring natural seagull tracks on grainy sand, with a gradient transition from blue to violet. ideal for

background vertical grainy wallpaper blur banner backdrop natural seagulls tracks sand blue violet gradient texture highresolution abstract modern digital art natureinspired soft tones creative design minimalistic sleek professional contrast stylish smooth blend artistic visual composition dynamic decoration beach seamless outdoorinspired contemporary featuring seagull transition violet ideal wallpapers banners designs