I just stumbled on your image. Terrific photograph although I'm mixed on the heavy vignette. At first I thought it's to strong but now I'm not sure. The heavy vignette does repeat the shape of the island of trees. Anyway, I find this very interesting. Thanks.
Handsome, compact copse atop the hill makes a strong statement, along with the interesting shadow. The sky works wonderfully. A fine image. For my personal taste, the vignette is too heavy.