I spent a very long time on this, and I cannot say that I am not satisfied with the result, however some stuff went wrong because I was a bit out of practice when I started, and I got lazy towards the end "I get bored when I work too long on something, and I was on and off on this one for almost a month".
The name " Banshee" is not literal; when the whole thing was finished it just happened to remind me of an old comic character which was a banshee.
Print size at 300dpi 11.693in x 8.267in
Print size at 100dpi 35.08in x 24.8in
Download a wallpaper version here[link]