Lovely! i think it's just wonderful. i guess this isn't necessary, more of a personal preference, but i'd like just a touch more depth of field. just enough to sharpen up the edges of the top rock a bit. perhaps not an F change, but just a focal plain taken from a bit higher up, so it catches more of the top one.
First off, I'd like to start with the fact that I love your signature-watermark in the bottom right hand corner. It's subtle, classy; lovely. That being said, this photo is very nice in terms of composition, but I think the f/stop needs to be increased slightly, so that the whole top stone is in focus. If this were my photo, I'd also boost contrast slightly, but well done!
