For lock, I give you Narvi and Celebrimbor, the masocts of the German Tolkien Society Smial of Mannheim - albeitwith a bit of lateral thinking:
Be it drarf Narvi's curly hair, which, in German, is called gelockt, or be it the unusual and fascinating lock - or way of locking, if you will - of the Doors of Durin, leading to the mines of Moria which were crafted by those two. The emblem of the Smial behind them shows the carving of the doors.
My take on lady fits not too bad to this, I thin, with these two modern-medieval ladies:
On this summer's trip to Norway, we passed an area where the temperaturs dropped down, even for the low average we were already having:
This is the drive throught the Haukelifjell, at about 1200m above sea level, and the temperatures about 6°C. The wintery remains - snow, ice floes and even water frozen solid - was left from the last winter, but not likely to thaw in this untypically cold summer.