Thanks so much for the positive comment.  

 I rendered the figure in Poser 6 with P4 renderer instead of Firefly because P4 renderer can produce sharper renders.  All boxes checked except ignore shader trees.  My own custom light setup with no ambient  occlusion or IBL.

The background is actually a real photo I took at the park, but I manually painted some blurring in Photoshop.  Shadow is Photoshop too, and lettering.

I'm glad you like it, but it's not quite as beautiful as your images.