These are definitely photoshopped. In the second row of pictures, the hairstyles are exactly the same. Compare how the hair lies in the ponytail indentically in both pictures on the left. And on the right the curls on his neck are identical. If, as the descriptive text says, it takes 3-4 weeks for the swelling to go away, then their hair styles would be noticeably different after that period of time just from hair growth.

Another nice touch is how all the sets of pictures have a t-shirt in shot, and another layer over it in the second.

I've been using one for a couple of years and it is a great alternative to traditional tents. I especially like not having to worry about the condition of the ground I'm sleeping over, just finding suitable trees in the right range of distance apart. When camping with scouts, this opens up a lot more potential tent sites out of the high traffic areas.

My favorite picture of one in use was in a swamp with the kayak tethered underneath.