I'll read "insight" as C&C shall I? In that case, per req:
1. Nice symetric composition, but the downhill slant to the right bothers me a little. As well, perhaps a slight darkening of the bright spots between the trees?
2. She does shoot colour!

VERY nice - I really like this one!
3. I hate to say this, but I think this is the first of your images I've seen that I don't really like. Again a downhill to the right angle, and teh chains especially so near her head just don't work for me.
4. Hmmm... doesn't say much.
5, 6. I really like these and especially the desaturated colours. I think I would prefer #5 to be composed so that the trunk was coming more out of the bottom middle of the image vice bottom left corner, but it's still a nice capture.