Yes you have to go there next time ! Brittany is very different from Normandy. I saw you pictures of Etretat. You did a great sunrise shot there! If I can give you an advise about Brittany, go the the far end in the county called "Finistère". Coastline is just amazing there with stunning rocks and cliffs. Especially Crozon Peninsula, a real paradise. It is far.... almost 6h of driving from Normandy, but it worth it!
Yes I guess I will make a whole trip to brittany next year or so. there are so many great places and your right about Finistere, the shores are sensational. I also have to see Pointe Saint Mathieu and Pointe de Pen Hir!