Stock:

Man http://fr.fotolia.com/id/11565302
Sky http://www.sxc.hu/browse.phtml?f=view&id=1251825
Footwear http://www.sxc.hu/browse.phtml?f=view&id=379991
Brushes http://physicalmagic.deviantart.com/art/Cloud-Brush-Pack-64513869