If you want to turn this into a full-blown tutorial the added complexity will be enormous, not to mention a 5 or 10-fold increase in page count. And correct me if I'm wrong, but aren't there thousands of Bryce tutorials already out there?

Now if each artist submits a brief 100 to 400 word description of their image, that would keep things simple and manageable.

Also, since many things cannot be modeled in Bryce you are severely limiting yourself by only featuring 100% pure Bryce images. Any image that's rendered in Bryce should qualify, and a bit of post-work can be allowed as long as it's honestly disclosed by the artist.

"An Example is worth Ten Thousand Words"