Nifty. I love the colors. Eerie green and the subdued red. I've seen that "Jellyfish" stone formation before but I can't remember where...I also love the design of the dragon, it reminds me of Frank Frazetta's drawings of dinosaurs rather than the typical dragon, Kudos for breaking tradition there.
Awessum Possum Bern, as always! I agree with Erik, the complementary greens and reds work really well in this. I find myself using those two colors together a lot, they always work out together interestingly.