Awww....that's a shame you are not hearing back from your breeder. There could be a legit reason, or some can't be too bothered after they make a sale.

Hoping you will hear back from them soon. I would think most breeders would love to get pictures, and updates about their puppies.
Baxter is four and I still keep in touch with his breeder, I send "grandma", pictures of her boy

....and she is always thrilled with them...in fact she's put them in some publications that she is involved in.
It could also be that the show season is in full swing...and the breeder just is not around as much to answer e-mails.
Gina