It's a wonderfully sensual image. The deep colored petals and their velvety texture are sublime. I admire your choice to crop through the tulip. This choice showcases the beauty at the blossom's base. If the entire tulip were in the image, I think I'd certainly overlook the base for the more traditional tip. This way I can see more about how the stem and petals fit together. The background blur is perfect---rich, but not distracting.
