That all sounds really good.
You could talk to her a bit about infinity,or fractions, and if she seems taken with the concept, video record that some of her ideas about it. Those are conceptual sorts of Math that most people would be suprised to hear a 3 year old talking about.
You could ask her some philosophical questions, where we came from and is it ok to do wrong for a greater good, and how do you know if it's ok, and video that.
Also video her talking about one of her sculptures and talking about how she made them and what they mean to her.
I think that this is a great idea. Enjoy.
Grinity