I don't think it's big. It's a hunter's photo trick. Those guys have used a very common photography trick used by hunters that is designed to make any kind of trophy look much bigger than it actually is. The snake is being held up quite close to the camera on the extreme end of a very long stick so that the man is at more of a distance away from the camera than the snake which is right in front of the camera. That makes the animal close to the camera look a lot bigger than it really is in proportion to the size of the man holding it and standing further away and exactly behind it so the animal's body blocks the view of most of the human's body and supporting arm. If the man was holding the snake in his hands closer to his body instead of away on a stick, even if it was at arm's length from his body, you would see a much smaller looking snake.
Another thing is if the snake was actually as big as it looks in the picture that little fellow wouldn't be able to hold the weight of it plus a big stick horizontally with one hand like that, it would be far too heavy. A big pregnant snake as big as it looks in the photo would be extremely weighty. But the man holding the snake is standing upright, not shifting and compensating to the left to balance the weight in his right hand, and he shows no physical strain in his body, no effort shown to hold up the snake and he doesn't even have very good muscles either, he's kind of scrawny and pudgy in the arms and belly.
But they tried to pass it off and almost succeeded, right.
A lot of big game trophy hunters (especially bear and wild hog hunters) use the same photo trick of squatting or standing well back behind their kills to make the dead animal in front of them look a lot bigger and more impressive than it really is.
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