I kind of miss the tan book covers. The new ones are pretty like Nellie's is really cute, but I liked the old ones.
I haven't seen any new covers for Felicity or Kirsten. Maybe they are just slow designing them.
Some of the picture selections for the new covers I thought were kind of weird, such as the one for Josefina Saves the Day. Why they chose the picture of her just sitting their with her sisters instead of one more relevant to the action of the story is beyond me.