I think the circle should be at the same perspective as the pentragram. The shading makes the pentagram point down whime the shading on the circle makes the circle face us. It's a bit confusing.

Oh, and... typically pentagrams don't represent the devil. Usually inverted pentagrams do. And even then, that's more of a representation of Satanism. And Satanists don't actually worship Satan, contrary to popular belief. Devil worshippers worship Satan, and I don't think they really have a symbol.

.. okay. But you're still using the symbols incorrectly. It's not a big thing, just FYI that's all.