I rather like this one! your use of opacities and texture blows my mind. And that's such a sexy color of green.
Although I do feel that the breaking part's light might be a bit too bright and draws away from the lovely detail of the green catacomb kinda shapes... My eyes are rather sensitive to light, though...so it might just be me!
Another excellent work. I'd use it (and the others) as wallpapers...but my laptop has the dumbest resolution ever - 1366 x 768 ...WTF