Windows in the bath - look at a few of these solutions to bring natural light and/or a view to the bathing experience.  From subtle glass block or shutters, to picture windows looking into a sheltered garden, each instance suggests a different application.
And how about those special touches that make your bathroom, your bathroom?   Try incorporating a unique slate slab...accent with glass block...carwash faucetry...handmade sink...or walk-in/roll-in capabilities.
And the proverbial problem still exists - what to do with the shampoo?  Shelves, steps and alcoves are perfect solutions.