I'm assuming these are all one person's works? I have a property release for my own work - anything I paint or draw that ends up in a photograph I license. I use my own "universal" release and in the property description field it says:

"Painted backgrounds, painted props, cards, seasonal decorations and mixed media collages, gift tags, painted frames."

In the visual reference section I have small thumbnails of a selection of the works - but not everything. I use this release repeatedly for anything I create and so far, no agency has refused to accept it. If I uploaded a reproduction of Monet or Van Gough, I hope they'd call foul, but this is all craft-type stuff.

It may also be that as I'm both the "artist" and photographer they're less concerned about the catch-all release.

If you're talking about major works of art by someone other than you, I don't know if the agencies would be as accepting, but why don't you try it with a few and see?