The patterns and shadows created by the tree roots and canopy contrasts with the bright sunlight in the distance. Often a sense of mystery is created by looking from light to darkness. In this image the mystery lies beyond the shadows.
Photo101: Mystery
Retirementally Challenged 
Beautiful! Yes, very mysterious looking.
Thank you. I don’t think I’d want to be here at night!
Indeed a mysterious pic ! 🙂 well captured !
Thank you!
Excellent photo for your topic. It is mysterious.