KL-
The strange dragon thingy eating a person is the tomb of Alexander VII. It is a sculpture done by Gian Lorenzo Bernini 1671-1678. Info is from the research database ARTstor, a digital archival database that describes art objects.
The pinecone has many meanings depending on the civilization/religion studied:
pagon: eternal life; masonic symbol for the third eye; greeks: symbol of masculinity.
This is a fascinating link that has lots of info about religious symbolism.
www.denemoore.com
I'm still working on the strange orb thing.....