I love licen shots, I have another that I am going to be posting also one of theses days, hopefully soon. It is so cool how the little plants can grow in and on the rocks, I also like it when the rocks get patches of moss growing on them. I have not found a good one of those to take a shot of yet, but still keep looking.
I agree and would like to see your photo. Sometimes the lichen has some amazing colors especially when wet. Fun to photograph, I hope you find a good one.
Going to try to get it posted tomorrow Green and orange on granite I think it looks pretty good.