I'll start by putting a couple of things out on the table for you. I'm not a big fan of shooting flowers and not an expert in any sense about what to look for, but I do enjoy looking at strong images of flowers. Take my comments with a grain of salt or a drop of honey.
I did vote in this challenge and gave this image a six. I don't know your style well enough to have expected a flower in this challenge, but I do know I'm enjoying your recent entries a lot. Especially the variety of subject matter and processing approaches. Very eclectic!
This photo is fascinating. As some of the commenters have noted it is soft with details that fit the subject so well. The single pink color palette with gradients created by petal edge lines and shadows is quite calming. The arcing lines themselves are varied and interesting - while defining a graceful diagonal path through the image. I only wonder where to land and tend to rest at the darkest section in the upper left third of the image. That said, I will say I like it a lot.
Finally, FWIW, I have to make a comparison to your Pastels entry, Pretty in Pink, which I personally think is a stronger image, although it didn't score as well. Just more fodder for the I am the Walrus score thread :-)