website background graphic design for group buy aggregator

We are looking to redesign the background for our website at www.enjoymentfresh.com. There are 10 individual backgrounds to be designed. The backgrounds must be themed on a particular city in Australia, i.e Sydney, Melbourne, Brisbane, Perth, Adelaide, and must feature landmarks from that city. There are five cities in total and two backgrounds per city to be designed. For example for the city sydney the first background is the registration background avaliable at [login to view URL], the second background is the main page background avaliable at [login to view URL] The website is lifestyle guide that suggests things to do, see and eat in a local city. We want a background that reflects this theme, potentially featuring pictures of restaurant food, activities, nightlife, and a iconic building from the specific city.