It's a good concept but for me it seems a little bit unfinished. Heaven doesn't come over that much different to hell -- is that your intention?
Looking at the glow and warmth created in hell, it seems far more appealing than the frosty, thundercloud that heaven seems to give off. From the thumbnail I thought that it was lightening striking the mountain, but on full view it's far clearer.
Technically, it's clear you made a lot of effort in the composition. I really like the texturing in the mountain and I'm convinced that going to hell is a good thing I would have liked to have seen more detail into heaven though!
From my basic understanding, the theme of this image is opposites. Heaven and Hell collide inside of a mountain, which gives the suggestion that the mountain is the middle ground, where all is neutral and the decision to walk above or below is made. The top right objects show us that light is being shed into dark clouds, suggesting holiness, which brings an image of Heaven above man. The bottom left objects demonstrate a darker theme, with burning hot lava pouring onto the darkness of the mountain, therefore hinting that this area is purged of good and rather has a very unpleasant experience behind it. The glowing, however, hints towards warmth. This can be interpreted in multiple ways, so it rests upon the viewer to figure it out. The lighting and coloring is quite perfect, with what seems as a fine eye for detail (note the trees on top of the snowy mountain, the light reflected off the mountain peak, the cracking of the tunnel from Hell). All of the curves are very well places, and a torrent of blur or unpleasant filters is not being displayed. While presenting a very interesting image, it does not impact my emotions very well. It did not stir my feelings over the picture other then the amazing art work. The piece did put out a sense of good and bad, which deserves credit, but does not make up for the previously mentioned item. Overall, good piece worthy of Museum display.