Increase traffic on my facebook app

I need to add more pics on my facebook app [login to view URL] and increase real traffic on it. Please pm only only if really sure to find and increase real traffic with viral method or other similar ideas. Payment will be done only after restyling on the app (its sufficient to add new pics with the possibility to scroll page to find new pics because now this function is missing) and when we have constatate that the traffic is increasing (I will give you username and password of my statistics).