When I think of rhythm, I think of music, beats, even poetry. I've never really thought about the visual aspect of what that would look like. Repeating intervals of shapes or patterns are what come to mind. Nature is full of order and pattern. Here is my visual research for rhythm in nature:
Green Leaf Detail by Petr Kratochvil
Spiders Web by Steve Gibson
Frozen Waterfall by Peter Griffin
Grey Sky by Kim Newberg
Pinecones by Joy Shrader
What do you think of when you think of rhythm in nature?