Maggie going after the littles is probably because she is #3. I find that whomever is last in the pecking order is the most aggressive when new hens are integrated. If Elizabeth is number 1, you have your pecking order. Watch them closely with that in mind and you might notice little things that give away that you are correct.I have trouble figuring it out. My sense is Elizabeth may be top hen but I am basing that on one incident in the heat of summer when everyone was a bit grumpy and she lost her temper with Maggie (who is much larger) and jumped on her back and pecked her head.
Apart from that it all seems relatively chill except for Maggie going after the Little Princesses.