With a nice clean space like that you can go a lot of different ways. I would start by looking at shower curtains, because they can become the focal point. When you find one or two (or more) that you like, you can play off of the colors in the curtain to find the color towels, bath mat, and even wall color. Some ideas: You could go classic black and white, with a touch of something bright if you want for an accent (like the fuscia in the photo) Or something "spa-like," in acqua and cream. Or you could go bright, with teal and lime green. Another classic look: tan walls, white and/or tan towels and bathmat, simple white accessories. Good luck!

You could lay a nice curved shape garden by the corner of fence and plant layers starting with 2-3 mtr trees at back down to 50-70 cm high plants at front. This will soften the fence line and give you something to look at while on the slab. Something for the kids also like a small structure to play in, on and around would complete a nice family back yard. If you are handy you can make you own small play ground copying parts of a local ground or there are kit sets available. Good luck,

Ouch, Lancewood! Nice read, FORM :)

Additional photos