Hugh/golunvolo,
Thanks for the kind comments.
golunvolo,
The choice of vantage point and focal length were just serendipity. I carry a small, light body and lens when we walk, as we are usually out for three hours, and our main focus is to chat, catch up the weeks events and complain about our wives. Any photo opportunities are secondary, and are just quick grabs. My friend isn't a photographer so I'm not inclined to take any more than a minute or two to shoot anything particular when we're out.
Robert