Shadow Pattern

Striking pattern from the cast shadows of some reeds that had fallen on their side. I think the reeds are a floating bog which got trapped against a log. I tried a few combinations and eventually came to the conclusion that the shadows were my main interest, so I progressively zoomed in until I excluded the surroundings. I left a few reeds in the frame for context.

Strange that my eye goes to the reeds first and then sees the shadow pattern.