Well, Fliss... if 'fresh' is the quality aimed for, presumably 'stale' is the condition to be avoided and, if there are as many varieties of the former as there are readers, the latter is certainly absent from your own work and from your chosen exemplars. I thought Ann and Maryann particularly apt choices for your opening post - though, as you observe, there are many more.
Please don't feel the need to be advised.
I'm just a bit puzzled as to why you wanted to define/refine the term. Not that my puzzlement matters - especially as your 'Freshtival' has garnered such varied and telling contributions.