Overall a very good photograph. Lighting, contrast, saturation are all done well. Detail is only lost at the very tip of a couple of the flower's leaves. Still only minor. In another challenge this picture would have scored much better. As it is, the challenge was "soft focus", you used depth of field to isolate your subject quite well. The idea of soft focus, is that the subject of the picture has a soft focus. Your technique is very good, it just didn't meet the challenge.