i am green :mrgreen: with envy!!! gosh that's gorgeous!!!
if i had the skill - which i don't - i might do simple triangular motifs in the light areas, with a similar motif in the center. featherish fans that come to a point rather than round. the center would be square, on point. for the dark areas, i'd just do a bit of tacking to make sure the cabin logs keep their shape during use and washing.
now that you have an amateur's opinion, here's hoping our members with expert skills pile on with some better advice.
whatever you choose to do, i hope it'll be designed to show off that fabulous piecing. :thumbup: