Portraits, what of the lighting

[gahspidy]

Here are a few portraits taken with the wireless speedlite system I have been slowly building.
The Key light on upper right was shot through a soft box (24x32") with the 580 EX ll. fill was on camera with a 580 EX ll diffused, and the back and hair light was with the 420 EX.
Does this look fine or am I needing to adjust things some more? It finally seemed to fall into place IMO, but more experienced eyes can tell.