Symbol Influence - 7

In my video, I have two different rituals, one with a pentagram and another with some blood. For the scene with the blood drawn symbol, I was heavily influenced by this scene from the now cancelled TV show 'The Secret Circle'. The symbol can be seen within the first 33 seconds.

For my video, I adapted the symbol slightly to show the number '7' in the style in 'The Secret Circle'. The reason for the number 7 was because the song is called 'Seven Devils' and it is one of the 'Seven Deadly Sins' chasing the lead. Here is how I did it: