Thanks for your comments, Mike, Akira and Mike G.
#1 is probably my favourite as well, and I included the others partly to show how the colours changed during 20-30 minutes. A few minutes after shooting #4, more clouds rose to cover the sun and the colours became totally neutral; there was no sunrise.
Mike G - I did actually say "threw on some clothes". though I have been known to wander our garden in the early morning in the manner you suggest; bare feet, too.