First let me say, I love this shot! I know it is a flower but the colours and the slight blur make it an abstract that appears to be in a fire, or kiln with that red glow.
As an abstract and impressionistic image, it's a 10+ esp. if you rotated it to be just a bit more diagonal in the frame.
For the challenge,, well, I feel it need a bit more of the area to be very sharply focused to give a real feel of shallow DOF.
I think that is what held this fine image from doing better. I think it was better than 4.7 but what do I know?
If the stamen (?) was very sharp and the rest has the lovely blur you have here it would definitely be a top 10 in my book.
Wow, now that's a real close close-up, is that a seed pod of some sort? Really like the colors, seems just a tiny bit oversharpened maybe or maybe that's just the texture of whatever that is inside.