I will develop a simple social networking website personally. Infrastructure has been created. All you have to do is make it good looking. For example change button, background, fonts, color, icon, size, placement and so on. At the top of your cover letter please mention what type of site I will develop. See attached image. Infrastructure of that page is almost same as attached page. But you would create another page that I would provide to selected candidate including description. I need nothing but a design that I would convert to webpage. So you can create it in html or photoshop or something else.