The background image is super dramatic, artistic, and eye-catching. The flames give a nod to the word "devil" in the title. The title itself is very appropos for the look and feel of the cover. The dragon is subtle, yet feels like it is personally looking at you, the viewer.
This design is available and unused if you'd like to see it adapted for your book. Save yourself the contest fees; shoot me a message and we'll open up a 1:1!