The post processing of this image is well done and there is no doubt that this entry meets the challenge. Where this challenge entry misses the mark for me is two fold. First, there really isn't a main subject to help anchor this image besides the color. As the viewer's eyes move around the image there is nothing that holds their attention for any length of time. Second, there are so many layers to this image, the flowers, the box, and the window, that it looks cluttered. Another byproduct of not having a main subject in the composition.
I'm glad I received this image to critique, as it gave me the opportunity to take another look at your portfolio. I remember critiquing your Triptych II and I like the additions you've made to your portfolio since that critique. Feel free to PM me if you have any questions regarding this critique.