I Really don't know what's right or wrong about Who Makes Crop Circles. However, the complex crop circle formation and design is still interesting for me. below are a few crop circle photo galleries, not the best but definitely worth to seeing.
The Butterfly Crop Circle Netherlands - A Gigantic Human Butterfly Crop Circle formation Meters x 450 Meters), the Biggest Crop Circle Ever. appeared in Netherlands near a town in southern Holland called 'Goes', on the of August