I would really of liked some depth to the 2 shots (e.g. f/2.2 or a wide open aperture). Everything is in focus in the BG and it's pulling my attention away from her. That's pretty much it.
Ooo and i donno, maybe cause i was there, but it seems this it's not a posed shot, it's like an in-between poses shot lol. Hard to explain, i know it wasn't but it looks like it.
I like the 2nd pose the best. Good job for a people person n00b!
Oh and sweet photos Nick, your getting better