Star Man, That is an excellent observation about the camera angle , so I turned off my auto rotate on my I-pad and manipulated the photo, even upside down here is what stood out immediately. The subject in the fore grounds stance became unnatural when tilting back and forth. He on the whole is standing up fairly straight to begin with, I refer back To my exceptional eye, which is a a curse and a blessing, it would of been the first thing I noticed if the photographer was holding the camera in a tilted position. But at the age of 63 soon to be 64 I welcome all insights and things that I may not of thought of.
I lived in the snow for 17 years and though it does not make me an expert in snow but even as children knew what snow was good for making a snow ball and dry snow was not one. There are even slush balls, when the temperature is right, have an excellent effect when the target is hit right, as the poor paper boy found when he was riding his bike down the middle of the street. And when I saw him coming I made just one of those delicious slush balls and from in between the houses I launched my attack. A direct head shot hit, exploding snow in an pattern only fire works would be jealous of. Back then it was hysterical but now as I think of it, it is even funnier...
The angle of the slope when considering this theory was easily solved by introducing that the tourists themselves while going to the bathroom dislodged it and they also ended up on the team. If it was one of the girls, no doubt a male would at least be at the tent entrance while the female ventured off for privacy, but not that far.
In summation, the waist line of the tourist even though bent over clearly shows a larger than usual snow drift on the stone wall. Zina herself said “Snow snow snow” and someone pointed out that the snow is sticking to the tourists face and clothes which makes it a wet snow. Essentially when compacted in the subzero weather turns to ice. Have you been able to place those 3 x’s in the one photo to the photos of them digging out the tent. Best Tim.