I guess it is conceivable for a MediaRSS plugin that would allow the existing piclens browser extensions to work. This might be an interesting exercise for someone
As you sort of implied by your customisations, I am not convinced that a image wall like this is an effective way to find media, esecially video content. It is find for an ever changing feed of content like flikr and youTube but for a media collection I think choice is based more on the metadata (title, genre, recording date etc) rather than an image.
To test it out though - a plugin the produces the format that piclens is expecting would be the best way forward IMO. From its front page this is a Media RSS feed I think.