Re: Help with prefold fit
Do they have snaps? For me, the advantage of prefolds is being able to customize the fit every time by using a snappi (or pins if you like but I can never get those tight enough). I also think having their legs flat helps. My newest babe isn't close to walking yet but since yours is, then maybe you want her to be in sort of the same position when you put the diaper on as when she'll be wearing it around. So frustrating! I hope you get it figured out and they will work for you -- your LO is super cute!
ETA - Do you have any issues once you put a cover on?
Happy mama of two (soon to be three!)