Weird?

I was meandering around earlier today looking for pictures when I came across this one. It was on 'Getty images' a serious image site, not a joke site or something similar.

Why do I say this? Look carefully at the picture, you may need to enlarge it, what do you see? I'm sure there is a legitimate explanation, likely it has been manipulated in some way, but it on first sight it's weird!

(Click to enlarge)

©Getty Images