I can certainly believe the trees are the main elements of the photo! Technically speaking - the eye is attracted to the shadows, so prominent in the picture, then instinct leads you with the shadows, eager to find the source - then they go up the picture, casually jumping the little building - and magnets to the two trees, far but massive and dark. Now - emotionally speaking - this two trunks remind me of a pair of legs - and when I compare them to the two short trees at the right, the methapore coming to my head is the the way people deal with life - there are those that when facing the hardness life presents us with from time to time - give up, stop their growth and shrivel, and there are those that continue without letting go - and grow to the heights.
The photo focuses on this strength- encouraging us to go to the heights we can lead ourselves to, just like this two trees without end.