How is the bathroom looking?

Have you ever thought about how the bathroom is looking in the Tardis?

Is ist just a normal bathroom where you only have enough space to move around with your elbows close to your body or is it this big that ten people would fit in at once? Will it have a futuristic design or will it look more like the 70s on earth?
I think it looks a bit like the control room, at least the colours, with all the modern stuff you can have in a bathroom and with a shower and a big bathtub. In addition there are big fluffy towels - you should never travel through space without a towel - probably in different shades of green or blue. You will find everything there what a girl really wants to have in bathroom. And maybe there isn't just one bathroom but a lot of them and each on looks differently.
I would love to see some other rooms in the Tradis and not only the control room. It would be fun - at least for me - to have an episode that's just inside the Tardis. Something like a chase of a bad alien through the Tardis where we could see more of the inside of the Tardis. 
And I definitely want to see the swimming pool! You hear me Steven Moffat. I want to see the swimming pool!