I have no idea if the photos have been tweaked. Or, indeed, if this is a Moose of Unusual Size (though anything is possible in the Fire Swamp).
But I can say that I've had several close encounters with moose cows with a calves, usually at VERY close quarters, such as coming across them in dense black spruce bush. They were alert but calm; and I was calmly backing off, in a very thoroughly calm manner. They're bloody big, and this is from a guy who worked cattle for the first half of his life. We all got along. I have had many more close encounters with moose than with bear.
I also had a bull moose walk right up to my house and look in through the picture window. That puts his head at least 8 ft. off the ground. I was in the twilight of sleep, in my housecoat, nursing my first morning Java; it was a magical experience. (Seriously, this happened.) In later years, we had a bull come through each fall, walking through a wheatfield or canola crop that was 3-1/2 feet tall; you could clearly see daylight under his belly. Again, very cool.
The Moose is Loose.