Cheeky aliens say farewell!

Year 1's friendly alien visitors departed school recently, but before doing so left these photos! Personally, I think they're pretty cheeky! Firstly, can you work out where the aliens were when they took the first two photos? And secondly, how did they know about 'selfies' on planet earth?!

Green Alien obviously took this photo...but where are they playing?

 

Pink Alien handled the camera here, but where are they?

How cheeky! A 'selfie' indeed!