Bathroom Brainstorming

I love powder rooms. In my opinion, they are the most fun room in the house to decorate.
Their size makes them such a fun place for pattern and surprise since you don't spend that much time inside them. Why not have a little fun?
We will eventually redo our downstairs bathroom this is my latest brainstorm on the topic.

Here it is (in a pic from when the previous owners lived here):

The space is pretty cramped - not too much clearance for a light- the door opens onto the toilet and you have to shimmy in towards the sink to shut the door. I think I would switch the door so it would swing toward the window. As you can see the radiator is sort of charming, in an old-house kind of way. I could box it in to make the bathroom a little more formal, but I sort of like it. Maybe I could paint it a fun color like navy and do all the woodwork in the same color. Also, our house is a cape so although I am tempted to go dramatic and big (my other bathroom brainstorm which I will save for a later date), something clean and nautical might be fun, and more appropriate.

Here is one scheme I am throwing around in my head:

This wallpaper by Ralph Lauren:

This flushmount light (Alexa Hampton for Visual Comfort):

Some kind of traditional looking pedestal sink:

Splurge on some fixtures (these are Waterworks):

Redo the floor in a pattern like large hexagons, herringbone or maybe just standard squares set at an angle:

In some kind of natural material like travertine:

Typically, in a small bathroom like ours I like to use a large rectangular mirror to enlarge the space. I am having a hard time finding some for this post so maybe a really large scaled round or fun shaped mirror would do.

This red color is fun with the paper (pottery barn):

This one is great- by Patina, I could custom color this any color - maybe navy would be cool... it is also large in scale.

For window treatments, I think I would do simple linen cafe curtains with a metal rod and small rings. I would choose a cream color to match the wallpaper background and then do a fun trim at the bottom.

Do you have a fun bathroom you fantasize about redoing?