watercolor grayscale background with light gray splashes for artistic banner, template postcard .

abstract ancient art artistic azure backdrop backdrops background backgrounds banner blanc blue blueberrycolored border brush clouds color colors colour cover cuban delicate design gray graypurple graysandy grayscale green greyscale ink light marble marbling minimal minimalistic ocean ombre oriental paint painting paper pastel pattern postcard poster purple sand sea silver splashes spray style template tender tenderness texture textured textures trendy turquois turquoise vintage water watercolor watercolour white