[Starman417]

this one looks a bit suspicious Link here

[Starman417]

It's a different photographer but looks suspicious, maybe my tinfoil hat is on too tight.

[Albertafriend]

Where is the rest of his thumb?

[TenthAmendmentChampion]

The focus on the helmet guy is very different from the background; maybe he was using a telephoto lens and focused on the guy, and let the background be blurry. It does look odd, though, from this amateur's perspective.