I decided that the thumbnail size and quality used up until now was not good enough. I just got done resetting all of the thumbnails in the album to slightly larger, better quality versions. In the process, I had to reassign the representative thumbnail for each user's album. If you don't like the choice I made from the available images in your album, feel free to re-select which image is used as your thumbnail. You'll find a button to do so at the top of the screen.

I think the better quality thumbnails will make browsing the album a lot more enjoyable. Comments always welcome.