Originally posted by juu
zeelich, I think you have a point.
I think the shape is seen in #1, but the sky is cloudy there.
#2 do show the shape, but the sky is so clear it's hard to imagine that there is ever wind in that place.
Why I choose pic3 is that not only the trees, but also the grasses and rocks on the ground help to express the wind direction -- they all point to the left of the frame. The dynamic of the pic is really vivid in pic 3.
In pic 2, i don't see this dynamic, and because the sea is peaceful, it interrupts the subject of your pic.