I spotted the sketch at CAS Colours and Sketches and thought I would have a go!
I've had this little holly stamp by Stampendous for ever and never tire of using it. I simply coloured it with a few shades of Copic markers and arranged it to fit behind the window in the little panel. I've also had the little Memory Box or Poppy Stamps sentiment (can't remember which) for ages too and love that just as much!
It's really, really simple but that appeals to me! I just love making Christmas cards as I know they will get a recipient, unlike many of the cards I've made over the years, which sit in a box until I cart them off to a charity shop!