I've seen some impressive bodypaint illusions before but this one is absolutely incredible.
If you'd showed me this photo and asked me what I was looking at, I would have said a parrot. Even after reading that it was in fact someone painted to look like a parrot I really had to stare at it to figure out the details.
It's much easier for me to see again now that I've seen it but it still looks very like a parrot. Great painting, careful posing and also well photographed.
An amazing bit of art by Johannes Stötter. His other images are well worth looking at too.