I've been updating threads on facebook and different forums, and sometimes feel I'm beating this species into the dirt so I don't post the same everywhere... but here's a couple of update pictures I've been taking. You can get an idea how they vary and what they look like from them.
The same big female as the above pic.
Here's a couple different animals so you can see the variety of looks. They don't really seem to fire up and down though. They always look about the same to me.