Categories in "Browse By Category" to be determined by card-sorting exercises with potential users.

Two different formats for browsing multiple images.  Note the expanded accordion menu on the "Most Popular" page.

The first page is how individual images and their details would be displayed.  If the image is selected, a close-up version of the photo will appear as an overlay.

Users would post images using this page; the second portion demonstrates how a user would select a thumbnail to represent the image seen by other users when browsing images.

Formatting and layout of navigation bar.

Upon clicking on a type of information (e.g. "Description" or "Keywords"), the box would open up; clicking on the box again would collapse it  and show all of the buttons again.

The image on the left is what would appear when the zoom button is tapped; the image would be re-sizeable with standard touchscreen motions.  The center image demonstrates the search function, and the image on the right shows the navigation menu.