Well focused and centered. I like the way the picture separates the water drops, but I think I might have gone for the opposite effect if I had come up with this inspired idea. Instead of using a more "stop action" shutter speed, I think I might have tried slowing it down to 1/30 or 1/15 to get a cascading effect rather than simply a wet head.
Beautiful. (Wish you had cropped out the shower head because the water, skin and hair are so well done, creating a universe with minimal natural elements...)