Not knowing what a Clematis was, I was uncertain what I might find when I opened the screen. This is certainly a beautiful flower with lovely colors and great detail and clarity in the dew drops. It's too bad that the entire flower is not in the shot and that you didn't bring your pruners along to take out the petals in the upper left.
The center of the bloom is not quite as sharp as the needle sharp petals leading out from it. Should be just the opposite. But, the colors are gorgeous and the whole bloom is sharp enuff to be a worthy catch.