Do you have any pictures you could posts? From your description I'd add as many live plants as possible, and some chunky candles - maybe in burgundy to pick up the color from your shower curtain. What color are your towels? Sounds like burgundy might be nice for those too. Maybe a new mirror over the sink (don't know what you have there now) - lots of inexpensive styles available. Do you have a spot to add a swing arm or acordian makeup mirror (mine is regular mirror on one side, magnifies on the other) - very practical and looks nice too. Good luck!

I wouldnt go over board with the rugs, if anything you could drape one over the tub for when needed but three rugs in that area would start to be busy, perhaps on long runner for the sinks. The one thing you didnt include in your statement was your style, what do you like? what theme are you going for, beachy, rustic, modern, traditional?

I like canvas art because I wipe water off easily. Here's a possible scale for yours, with mirror larger than art. Art shouldn't probably be wider than the toilet. Idk if this houzz excerpt helps: "Having lighter colors at the eyeline will help a bathroom feel clean and airy, but try balancing them with a deep color lower to the ground. This adds a sense of richness that helps keep the space from feeling too stark, without making it overwhelmingly dark. Plus, it beautifully sets off classic white fixtures."

It looks very nice! Lots of potential for major charm. :) Depending on privacy needs, some window treatment ideas: Cafe curtains … Cafe shutters … Full shutters … Roman shades … Bamboo shades: Or a simple (but very charming!) curtain … For walls — are you asking about paint or wallpaper? Or wanting to leave the color as is? I could see wainscoting with paint or wallpaper looking great in this style bath, but not sure if you’re wanting that sort of change (or even like that look): For shelves — what do you think about a vintage style cabinet? For example, something like this apothecary cabinet from Ballard Designs: The above comes in white, too. Love the idea of a vintage or antique one: You could get very cute vintage style glass or ceramic knobs for a cabinet. For a rug — so many possibilities! It’s just based on preferences. What styles do you like? Do you want something with color(s) or stay neutral? My own preference is traditional and colorful: But something neutral would look fine, too, if that’s your preference.