|Greetings from the Critique Club:
A Bloom of Grace was your entry for the Delicate challenge and it fits well. It appears to be a Water Lily? no too sure though :)
Focus is spot on and by using f2.8 you have obtained a shallow depth of field that produces a sunburst of petals as a background whilst bringing the centre into clear focus. I think there is a hint of sharpening. It is a useful tip to include your processing steps in your comments, these help other replicate your process and help when doing a critique as CC can follow your steps and understand more clear if there are things that need working on. A lot of voters do not like centred images, but this works in that format. You have wisely used maximum sizing to increase the impact. Perhaps, at another time, try using fill flash to open out the centre of the plant more.
A central weighted format using a single flower as the focal point. The background is very natural, but the two green areas visible through the petals tend to pull the eye away at times. Very good overall.
There are few things more delicate than a flower head. This is a very deceptive image as it has to be studied carefully to get the full impact. I have a feeling that you have a leaning towards Macro photography, a very rewarding genre to aim for, it is my favourite as well. Your score is about what I would have expected for the image and now you have the task of matching it the future. Over 5 is good and even if you drop below, use every challenge you enter as a lesson in your hobby/work/torture. I hope you didn't get your feet wet getting this shot! I hope this helps and is constructive.