Mysteries don't make great photos

Shadow/light, originally uploaded by jiihaa.

It is often difficult for me to know whether a certain photo has any interest or meaning for others. For example this photo is for me an interesting one, but at the same time I think it won't have much interest for others.

There is a sort of puzzle in the shadow and light of the trees, but that does not necessarily mean that a photo containing such things is a good one. But perhaps someone may wonder why one tree is black and the other is light.