Wasp nest

Recently we removed a wasp nest from home and instead of throwing it away I decided to preserve it.
It is about 3 1/2" in diameter. The nest is made of layers of paper like material. There is a caterpillar inside too, stored food for later use?

Inside are cells 

The top one is the worker. Down below are two bigger wasps from the same nest. One is the queen, and the other one I am not sure. Male?

Shelly