Hi, I noticed the 31mm as well, but I guess it's an approximation..
About the colours, they were gorgeous, but it was a different image in colour, it made less sense of the angles and shapes, the colours just seemed to diminish the impact, so i decided to convert it.
Flick.
A very good angle is chosen for these stones. The texture of the lichen is really nice, I wish to see a little bit more of it on the worn stone. I'm wondering about the colours (were those so much distracting)? Interesting that you got 31mm from the 15-30mm zoom ;) MCsaba