Garen, Obviously a loo doesn't need a door if it's in a bathroom but I've never ever heard of anyone who would like to use a seperate loo without there being a door. I suggest you keep working on your plan, just keep drawing, or perhaps seek the advice of a professional home designer/decorator and you might be surprised with what is suggested. Sometimes we can't see outside the box so to speak like a professional. My daughter has a loo in her upstairs bathroom, right beside her shower and the shower wall seperates the loo and it is not obvious when you first enter the room, so there is a level of privacy however, if someone was at the handbasin then all would be in clear view, not for me but it does work!!

No signs in mine. Just a blank space waiting for inspiration. Growing up, we had a times tables chart on the door. We also had an rickety outhouse loo on the property next to an old house. We had a black and yellow road style sign on that. I think it read "Next dunny 500km" or something like that. While this (below) isn't a sign exactly, it still might prove amusing. Especially if users come up with appropriate theme music. Hopefully they'd tickle the ivories rather then tinkle them. http://cdn.shopify.com/s/files/1/0231/8799/products/59c2bcaf095fbfe6b7d208aab8813054d1616d91_large.jpeg?v=1428559248

Hiya! I would treat this as an opportunity to go totally steampunk! Put in a shutter, like the other folks have said, to hide the off centre window... then paint the bricks, and polish up the pipes and add a bunch of non functional complicated looking piping, with gauges and stuff. Of course, it would depend on the rest of your decor... I would also consider bringing the mortar up to brick-face level, before painting. If you went steampunk, you could keep the floor as is; it would fit right in! Get a sheet of copper or copper-look metal and hammer it up a bit and curve it slightly around the cistern IYKWIM, and hammer up a piece for a lid so you have access, (drop on lid, attach sheet to wall with dynabolts). Then paint up the pan in a nice distressed metal look, and seal with enamel clear lacquer, marine grade. Wooden toilet seat and you're 1800's sci-fi swish. I love odd rooms like this, because it's always going to look strange so you can make it spectacularly odd, instead of, 'oh dear, I tried to hide this, but...'

You need to buy a bidet toilet seat. We have had a Conway BA 13 which was very expensive at $1600 or morr but in our next house bought a Quoss for $500 which does the trick. Great for my elderly mother who lives with us but now I love it too.