May not be very good at this, but I'll take some from all your suggestions, add my own and give it a try. I think it's a hard thing to do from just a picture and not seeing it with the naked eye.
How about "Pink terracotta with lighter sepals, gently ruffled and veined, cranberry plum eyezone and matching edge, gold over green throat." The colors from the picture are very interesting and it's a very pretty flower!
