Best way to remodel/redecorate a small bathroom?

The bathroom is very small. The tub is a medium/light blue with a beige shower wall, the toilet is blue, and the sink is blue. They're all pretty old fixtures but there HAS to be some way I can spice it up. The sink is also like, freestanding? Like it's held up by two metal poles if you know what I mean. Is there an inexpensive way to build or install an under the sink cabinet below it? I'm curious about color schemes that I can use for a small bathroom with blue fixtures. It's a small area so I don't want anything alarming, but I would still like it to look modern, homey and classy. comfortable.

Any suggestions on bathroom furniture that would work well in a small bathroom? All I have in there now is an old nightstand next to the sink and it's holding allll of my lotions and curling irons and perfumes and all sorts of junk.

The shower curtain I currently have is a clear vinyl with a small white Victorian print on it, and I like it. It's really brightened up the room just by adding a lighter curtain. Anyways, any suggestions would be greatly appreciated! Thank you :)