Everything looks sharp to me, so points lost for that. However, it's a beautiful picture and great lighting so I won't score low. Some will debate even though dof may be only a couple of inches, to me part of the photo should make it look like a wide aperture was used to make the sharp parts stand out. Here, just the black does that. (and the frame).
DOF is not very apparent in this picture. The high contrast between the background and the flower makes it look almost artificial. I think if a shadow would've been cast on the background as well or there was something to show that the background wasn't just a void of blackness, it would've helped it a bit.
I don't think this is a great example of shallow depth of field, but it is an exquisite photograph nonetheless. The lighting and composition are perfect.
It takes alot to impress me with a flower photo. . .this one most definitely does! There is a wow factor extraordinaire! The lighting is out of this world! Good luck.
This is beautiful -- composition, light, setup, everything. However, I'm not sure the depth of field is shallow; the entire rose looks to be in focus, and the background is black. GORGEOUS image, but since it's a technical challenge I feel like I shouldn't give this the 9 or 10 it would otherwise deserve. 7.