left panel of Stonehenge piece in progress

I am working on the left panel of my Stonehenge triptych.  So far I have 2 figures sewed down, and in between what I hope will be recognizable as a sheep.  I am thinking of the quilting patterns to use, and I figure I will apply the spirals and concentric squares that I have used on the other two pieces.  They came from a picture of a Pictish stone that I found online.  I plan to face the three panels and hang them from one piece of lathe when they are finished.