Yes, great idea, and really looking forward to the winter version.
I like the first one very much. Great composition and light, but I think the darks are a bit too dark. Maybe an extra very high, 0.1 strength, no shadow sun (cheat) or increase of exposure will get you some more light in the darks. Or a cirrus layer.
Also, there's some strange stretching on the left stone. Can't tell if it's hard shadows of grass or stretching.
I would have thought you'd use the same POV for every iteration, so you can animate them into eachother.
On the fall one, it's a pity there's no light on the stone, IMO.
If you don't want my C&C, just say so
