This is a pretty damn awesome picture. The glow version is cool too but this one tops it with the swirly lights and colours. The other one looks more dark and threatening. They're still both awesome pictures.
Probably around 12-13 hours (a lot of that was just messing with blending modes and glow effects). Once I "finish" the picture, I like to play around with it a bit to see if I can get an effect I like.