That pic is of a replica, though, and I wouldn't ever use another replica for reference. At best, it will be a replica of a replica (i.e. someone else's interpretation). And at worst it may be perpetuating a mistake. The Sideshow 1:1 bust is a perfect example. They have the MR pinch on the helmet because they replicated a replica.
No, always go with pictorial reference of the actual deal, even when it's not very good, and go with what you believe it looks like.