Well once again you've managed to capture a lovely image here!! The detail in the flower is amazing; the little red specs underneath the petals really add to the look. So do the spots on the leaves- those imperfections make your picture stand out more, as it seems most people only want to photograph the most perfect rose. Nice focus too; you've got a crisp, clear image.
There is only one suggestion I have here, and it would be to play around with the color editing a bit. In this one picture there is bright green, red, white, blue, and black. I feel like all of those colors don't go together too well, and it distracts the eye from the simple beauty of the flower itself. This would be a great one to try in sepia, or even some more vintage coloring effects. My suggestion would be to mess around with it and see what new things you can try in that regards.