The rock face certainly is intriguing. Not knowing how the rainbow effect was achieved, I found it a bit distracting in front of that background... to my eye it's as if the photograph has two subjects vying for attention. If I were a talented photographer, which I definitely am not, I might really like this pic entirely because of the rainbow drops.
The rock face certainly is a nice subject, it's a shame it's not more in focus though. I agree with sharonva that the sun's reflections on your lens were a bit distracting from the main subject. Welcome to Caedes.