Help with PP

[Theantiquetiger]

I took some outdoor portraits of these kids yesterday and I am very happy with my captures, but my limited PP skills have me at a loss. I am looking for a soft light, dreamy look. Nothing too extreme, just softer.
This is just an example of the shots (not the best of the bunch).
Can some of show me a good video or set by step PP on achieving this. All images are set here. The ones I like, the kids are sittin further back, on the ground, no brick in for ground and mostly brick in BG.

This was just done in Lightroom. I can easily loss the vignette.

I have CS5

[=https://flic.kr/p/q8y8C4]

[/url]shelly8 by Theantiquetiger, on Flickr