So, why isn't this a fave?
1) Well the lighting is the most important thing here. To me, the conflict between the light of the sky and the blue, magical light from the creature and the stones is at odds. If you want to personify a deity, you must wholly own the setting and the light is part of that. You have to make the creature the light that dominates the conversation and the sky wins this picture's unspoken argument.
2) The second, and much less important part, is the painting style. Once again there seems to be two styles at work. The air-brushed waterfall and sky look GREAT! The well-defined stone from the waterfall is tantalising with it's lines and definition. However the ground nearby seems to have been done much quicker and the clash of styles once again throws the tone.
All-in-all a good work and these are the two things keeping it from being a great one.