A piece of advice from a pre-diabetic who also has to watch sugar (read carb) intake. My wife is a superb baker/pie maker/cook. She learned a long time ago that all no cal/low cal sweeteners do not react with the fruit for pies like at least half real sugar. It keeps the fruit from "juicing" up. She always uses at least some sugar in berries, etc., whether cooked or eaten raw. Your pie looks super, especially for first time. VERY envious of ya'll up there in the NW with all the berries. When we took our Alaskan cruise all I ate was berries and salmon!