Did the color on this one the other day (the outline was done exactly one week ago). It was a pretty great session. We started at the bottom and worked our way up and it took about 3 1/2 or 4 hours.
The catch is that there were no breaks whatsoever. Not for the bathroom or water or anything. We just started and the next thing you know, we were done.
I think we were both just really zoned in on it and the time really flew by. She was totally relaxed the whole time and I felt great afterwards. Usually after a session like that, both the client and myself are feeling pretty run down, but this was one of those times where everything seemed to click and flow well.
Kudos to her for being such a great client...