Skull and Tentacles Final Piece

This was my final skull and tentacles piece I was working on and background. Before i started the background i knew i had to add something behind as i could see something was missing. I then decided also that the skull needed more attention so with the burn and dodge tool it helped me achieve a more interesting look towards the skull and tentacles. The crack lines gives off the idea as if something is taking it apart as the tentacles exit out the mouth. To me it looks a bit spooky and edgy, along with the background  to give it that portal look. The colours used in the back i think was sensible and very relative also. I didnt want it to look to dark so added more of the dodge tool in the back also