Paddington Labrador Retrievers
This breeder got quite a shock when long hairs turned up, so they did DNA checks etc. The longhairs appear to be a throwback to St John's Water Dogs (which were ancestors both to the Labrador and to the Newfoundland).
You can probably expect your pup to be a bit heavier in bone than a traditional labrador. In fact, looking at her paws and growth joints in that last picture you posted, I think that is definitely the case.