I just finished the series myself... And I love it! 8D
The only comment I have is that Liz's button looks awkward with her hair trailing down behind and only her head. :/ I know it's a difficult issue to work with, but I'd have considered making them all shoulder-up because of this.
Yeah I thought so too, I tried cutting her hair off around a shoulder area, but it looks less like her. xD It didn't seem to affect the way it sold though, I actually sold way more of her than my Patty button! (Not sure if that's because she's more popular.) Thank you for the suggestion though!