this shot definatly has a better composition, but something feels wrong, the boulder is to big i think, which creates negative space (little clutter) placed very strangely in the shot.
I like the composition too but not sure why I'm not loving the image itself. Technically speaking it's great but there's something I can't quite pin point that's not right. I don't think it's the lighting cause the lighting compliments the scene nicely in my opinion. I think you could maybe include more in the background, like raise your camera a little to get the sunlight which appears to be shinning on the background, could be it..
Pelle