Once you get the hang of making Auras it's extremely easy to do, but if those first few aren't working then here's a few tips.
When you take the photo, try to make sure your object fills the white square. Try taking a picture of something flat like a magazine or picture, hold the phone steady and take the photo head on. Avoid reflective surfaces or images with lots of blank space.
When your Aura is ready to use and you're back in camera mode, hold the phone steady in about the same position that you took the photo.
When making outdoor Location Auras, pick something that doesn't move; the front of a building will work much better than a tree or car.
If you're still having trouble, then feel free to get in touch .