Acrobat twins

The Acrobat Twins, No one really knows for sure where they came from or if they are brother and sister (although it is assumed they are).

They appeared one day outside the ring leaders hut as he opened the door to breath in the fresh morning air, when he first sore them they where sitting still just staring at him not saying a word (in fact they never say any words... that we can understand).
He took little notice and carried on his everyday chores, but they where always close by just watching him. After a short time they freaked everyone out and ringer leader was forced to call the police.
The police could never catch them, they where to nimble and fast as well avoiding every trap that was set. After weeks of attempts to apprehend them with no success the ring leader cracked under the frustration and yelled "WHAT DO YOU WANT?!!" Then the two jumped in front of him and gave him a wanted flyer that he made saying "Acrobats wanted"

Edit:
The Cream one is called Luna
The Brown one is called Eclipse