How do you render images to get these reflections?

I was wondering how do you make the renders with the nice reflection on the ground using the one coloured background that is shown in the smaller photos on the right. Are those props, or are they done with just using DAZ techniques.

EDIT: Full Image Size:
http://www.daz3d.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/0/2/02-cute-poses-for-genesis-2-females-daz3d.jpg