This is an insanely interesting thread! I love seeing the subtle variations and more dramatic variations in breeds. I think your Papillons all look like well-bred Paps, Laurelin! They're all unique & special in their own way, though, which is awesome. I wouldn't want a bunch of identical dogs. I meet a lot of Paps who look exactly like long-haired Chihuahuas, all of yours are clearly Papillon. ^_^
I think Border Collies are an incredibly diverse breed, but they're all recognizable as Border Collies. With a breed who has been bred for centuries based only on their working style and not on conformation, it's AMAZING how similar working BCs today look to original BCs. Especially compared to many show breeds who have completely changed in the past 50 years, even though they're bred to conform to a physical standard!
Old Hemp (1893) The progenitor of the Border Collie
Working Border Collies
Show Border Collies