Thank you Seamus, you have warmed the cockles of this old photographers heart and put a big smile on my face - and please forgive me for slightly editing your text on this reply, but I assume (correctly I hope) that you meant to write Dave when writing Fred.
Dave, I did, I did. My apologies. That kind of thing happens when you get a rush of blood to the brain late at night.
Jeez, if I'd known it was going up on your wall, I'd have tightened up a few bits but anyway, I'm glad you like it. I have a feeling Isaac won't be putting it in a frame any time soon though.