Many thanks to those who reviewed my last effort - I think I have learned much.
I wonder if I could have some opinions on the quality of this pic (reduced from a >10mb raw) and some suggestions regarding post processing. Apart from the conversion I haven't touched this picture at all.
Shooting info: EOS400D, 1/40s, ISO100, F22, 72mm (using Sigma 50-500). MLU and cable release.