I think it's a good start. Overall, I like the idea. A bit of padding around the images might make it a bit easier on the eyes. I love that the files appear in what seems to be a random order, so older torrents show up near the top. That will be great for keeping some torrents alive longer and reviving some old ones, too.
Is there any chance of getting the "clear all" and "set all" buttons from the search page on the filters for the browse page? It's a bit of a pain to have to tick or untick all of the boxes to filter the images.
The biggest problem I see is that some of the images are the thumbnail sheet from video capture software. For those torrents, the image is really 10 - 20 tiny images that cannot be seen. Perhaps this could be fixed by giving uploaders the option (or requirment) to select one full-size image to be the display image for the browse page.
That criticism aside, I think you're on to a great idea. We still have the old search option available, so it's great to have a choice there.
Thanks!