Paint that back wall a really nice creamy slightly dark french green and the wall of the shed could be the same colour. The bricks of the patio don't work for me at all. i would cover with timber cladding.

That looks lovely! Any before pictures?

I have been deep cleaning and oiling my deck for the past 10 years after we installed new wood decking. Twice a year I deep clean the wood deck using a hot sodium perchloride (cheapest Oxybleach from Woolies) wash - 1 cup to 5 L very hot water to activate. Add the hot water to the rectangluar bucket first, then add the oxybleach and stir to dissolve completely for 3 mins. I wear my wellies to apply a generous application of oxybleach with a soft broom to the entire wood deck, then come back and scrub the wood with a stiff bristle broom. This will melt away all the grim and really deep clean the wood. Then hose off or gernie off all the suds and grim. Leave to dry for 48 hours before oiling the deck. I oiled once a year for the first 2 years and now the wood is well saturated I only oil every 2 years. To oil and preserve the wood I use Cutek CD50 ( a good selection of tint colours are available if you want to stain the wood to your preferred colour). My deck is still like new after 10 years. This is a brilliant cheap method of deep cleaning and preserving wood decks. Good luck!

Congratulations on what you've done so far - the potential is fantastic. Not sure about apps but I love Josh Byrne's garden (from gardening Australia) he's in Perth too. http://www.abc.net.au/gardening/stories/s3781881.htm http://joshshouse.com.au/portfolio/completed-garden/gallery/photo-album/ http://www.abc.net.au/gardening/stories/s2515177.htm