User blog comment:Kate.moon/Harry Potter Crop Circles/@comment-121.44.72.194-20110714001406

you enter the left hand one from the top, and the right hand one from the bottom. similarly, the tracks leading in through the sides are different. You can also see both of his ears on the left, but only one on the right. the right hand tie is stripy, and the left hand tie is plain. that's all i can spot so far =)