As I see it, this is about colors and shapes, rather than contrast, and the contrast seems a little harsh to me. May I suggest an improvement? Something to toy with. There may be an even more beautiful image hidden in here with some very simple but perhaps unusual PP..
I gather this isn't PP'ed at all? (You're supposed to add "used pp" or "no pp" in this challenge I think.) Peeked at your galleries btw.. what a nice collection of colorful scenery.. most impressive.
