I like it. Seems like a useful tool that has been pretty well executed.

Now some observations:

- It's hard to tell who posted a panorama - the only information about the user is their image

- Is each person's rating posted as a comment? This could be problematic if hundreds of people end up rating a panorama

- I'm not too sure your permalink structure is good for the long run (using folders, categorization will make it easier for search traffic to find more content)

These are just my observations, please take them lightly. Like I said, the site is nice overall and can be a useful utility for those interested in panoramas.

Best of luck!