Areas marked by blue will appear to change or "move" due to the difference in "blur" from photo to photo (there may be more involved than simple blur, I will leave that to the experts). Anything inside the "outer edges" will appear to do odd things, photo to photo when blur is involved.

But the red lines point to objects the do not change (things on the outer edges). Since in theory (the line of reason is) that Ty is moving, which is why the trees get larger or smaller from photo to photo... and the foreground trees move against the location of the background trees. But in reality... you can look through all of the photos, if they are correctly sized and correctly rotated... they are the same (other than the blur and a few blotches). My GIF software distorts so there appears to be movement when there is none in the overlays.

If wind were in affect, wouldn't all of the leaves move along the outer edges of the trees too, photo to photo? Or does the wind only work inside the trees?