Gentle reader, it is possible to take Bob's images for granted. That would be an error.
Speaking as one who has dabbled foolishly in the art of photomanipulation, the degree of perfection achieved by Bob in this and in all his images is astounding. Of particular note here is the fact that the source image for Alice, as Bob tells us, is the 'Alice (and Koska) in the Crux Forest' set.
If you are familiar with that set, you will be aware that the Crux Forest is very, very green. Forests are inclined towards verdancy. A snow scene, on the other hand, is very, very white.
Believe me when I tell you that lifting a figure out of a green forest and dropping her into a snow scene requires a good deal more than a simple cut and paste. Bob has adjusted the coulour of the figure of Alice, but also used filter layers to achieve an image that looks for all the world as though Makar took Alice out into the Russian winter, crucified her, and then grabbed this shot quickly before the poor girl froze to death.
Me, I've never yet managed to stop Alice from looking green.
So here we have a master at work. Respect, Bob!