Personally I don't really see any problem with determining what item is being sold in the pack.
I mean, at the beginning I also thought about hair, but I blame it on my brain associating the packs with hair, since hair is what we got in the first set of packs. (complicated sentence is complicated, lol)
The other thing is that the colors were sorted this time, including the hairs, so our eyes were tricked by matching colors and we didn't notice the hairstyles were different and the eyes were the same.
But then I looked down and
read the name of the new item being sold, so as long as we all can read I'm sure we can manage and spot the new item
Perhaps we were mistaken at the beginning, because eyes are pretty small items and they were kind of dimmed out by the hair, which drew our attention first.
So my suggestion for the future: if the new pack item is small, maybe try matching them up with equally small items, something that wouldn't draw bigger attention than the actual new item. So, eyes could be matched up with e.g. earrings or lips and hairs with under-/overshirts etc.
Still, I think we can't avoid the misunderstandings to come. We just need to see the accompanying items are not of one style (as Firn obviously used different types of hair, it's easy to notice) and
definitely we should be reading the item's name
Other suggestion: write the names of the new items in the title of the announcement. Though that may be annoying to Firn, it would let the users know what to expect from the beginning.
Ugh, sorry for the essay, I was making up ideas as I was writing
I hope everything is clear (I'm horrible at explaining

) and that it will be of some help.