There are enough similarities in the small details that if they weren't the same guy then they are likely wearing a mask - but if they're wearing a mask why don't they look more similar in appearance?
They do look quite different in general, but there are a lot of small features that are identical, which would be hard to reproduce with body doubles.
Same guy different camera. Lens aperture and processing explains it. Look at his eyebrow, smirk, smile, nose bridge... come on be serious.
I think you may be right.
There are enough similarities in the small details that if they weren't the same guy then they are likely wearing a mask - but if they're wearing a mask why don't they look more similar in appearance?
They do look quite different in general, but there are a lot of small features that are identical, which would be hard to reproduce with body doubles.