So, I looked it up, and most Newfie pups with papers and show lines are still a good bit less than 2k. Are the dogs registered? Which relatives have been show dogs? And, more importantly:
Well, it's because you haven't dressed the puppies up enough. I mean look at that picture. The dog isn't even wearing anything, including a collar, much less cute doggy-outfits! No sweaters, no little bow-tie, NOTHING. People need PIZZAZZ. Dress the dog pictured above in a few outfits, and post them on here, as it is hard to explain the exact outfit type people are looking for, and we can tell you which ones are what breeders usually post, and which ones work the best, etc. Also, your location and breeding name would help so we can see what your gimmick is. What is your breeder thing that sets you apart? Incorporate that into the outfits! Make sure at least one of the outfits has sparkles or gemstones, preferable a few options. Again, you want the dogs to really stand out!
EDIT: And why is the picture claiming to be the Mother when that dog is clearly not even 50lbs? I mean with the right outfit we could spin that, but it's weird... We're probably going to need some sort of hat and the right backdrop for her if she isn't a Newfoundland, and we're claiming the pups are Newfies. Easter is coming up, do you have any related costumes?