customised photo blogging

I want a website with following features: Only admin can post the pictures. Viewers can post comment on each pictures using their facebook login (use facebook comment plugin) 1. Admin can control the commenting. It means admin can stop posting "new" comments on any picture. 2. No upvoting or downvoting on any picture is required. 3. Picture should fall in two tabs: Latest and Trending 4. Home page should autoload if the user scrolls down the page. 5. Admin can post pictures. 6. On the right hand side of the webpage, list of top users will be shown. Top users will be chosen only by admin and it can be one or more than one. So it is not automated.