>>1851001>>1851003 is correct. The light is from above, slightly to the left, possibly a little from the rear.
So any additional shadow cast by someone off-camera, "in front" of the forest,
can't be right.
If there _was_ such a shadow, however, it would be elongated, the rays
traveling almost parallel to the ground.
So things like grass and a tree root would "stick up" out of the shadow.