keep a real sketch like quality to the right hand side of the image and the buildings at the back with just really subtle colours showing extensive greenery in and around the building including ground up the wave form curtain perforated mesh screen that surrounds the building add some realistic people in the outdoor area and make wall the buildings behind and to the side including the glass balustrade almost disappear ensure a creeper is growing up the wall on the lhs of image and keep the planting simple contemporary australian style