an abstract background featuring a gentle swirl in shades of grey the gradients creating an illusion of motion and soft shadows

abstract background shape matte dark smooth wave threedimensional flow curve gradient motion modern futuristic elegant dynamic texture design banner art wavy liquid fluid geometric creative pattern wallpaper graphic template decoration flowing line minimal soft material light fashion business technology element fabric presentation curvy abstraction luxury textile featuring gentle swirl shades grey gradients creating illusion shadows sleek device scre jpe generated