John,
Many thanks for that. One of the big questions we've had each time we entered was: "What exactly do the judges want and look for?" Despite reading the rules many times, it can still be difficult to know. Perhaps this is why many of us need one attempt and awards presentation before we start to get it right - I remember, after our first attempt, diving for the table to look at the winning entries to find out what they'd had that we hadn't! So your advice is really useful.
And let's hope it means more entries and a more difficult job for the judges next year.