Good looking shots and I'm sure their parents appreciate the pics. I know it's tough to control the timing of Easter egg hunts, but mid-day open sun is particularly tough. #2 shot has a lot of shadows from what looks like tree branches above them. If you were getting them to pose for a shot, I would suggest looking for somewhere in complete shade. You could possibly throw in some fill flash or just overexpose the background so the kids are correctly exposed.