Not suggesting you change the image. Just a heads up that people might associate you with them. Besides that, I think it's awesome. I dig the pink.
-Edit- Although... Wtf? The scythe is pointing different directions. If you did that, well done, sir. I'm impressed.
So long as they didn't originally make the art and copyright it, it's free to use by all. If people start complaining their "artwork is stolen" or already used and they didn't make the image, 100%, renders, characters and stains included, tell'm to be more original or look harder. My way anyway.