I finished this commissioned piece and I called it "Halcyon" which has a couple of meanings, but I liked this definition: calm; peaceful; tranquil:
But it's also a mythical bird, usually identified with the kingfisher, said to breed about the time of the winter solstice in a nest floating on the sea, and to have the power of charming winds and waves into calmness. This fits pretty well with the piece as well...