Nice texture on the petals. The stamens are a little soft-focused. The color is really nice. Would like to see this with a differeft crop with the flower heading into the frame instead of looking out of it. Also, the shadows across the flower are distracting.
that stem (?) in the lower left is unnecessary grabbing attention, and something cast shadow on the lower part of the flower as well as on the left petal. The flower itself is on the softer side focus-wise and that's ok. However, I think that you should have either used a wider aperture, or blurred the background in post-processing some more.