Glowing skullsquid

This is an alternative version of this one: [link]
I've done a similar painting about 6 years ago and always wanted to do something like that again, this time in a more striking way, or a way it would look great on a t-shirt etc. (I think it could even be the cover of the Necronomicon)
Here's the previous (acrylic) painting: [link]
This time it's a digital painting, Corel Painter (done on a Wacom tablet in 2 days)