If I may make a suggestion, I say follow what Mutagen did. Postfluff as it originally was kept in its original form, but he created new “topics” for the newer pages to Postfluff, starting from here.
I feel it depends on hold old the art is. Fanart art, side art of Fluffy Runner could work as a compilation, or it can be individual. It sort of depends also on whether you want people to have attention to a single picture, or to a collection of pictures. Both have their advantages and disadvantages.