so, can you tell them apart?

DaVinci is obvious.

Frazzle has white on her nose, she's the only one.

Cameo has white on her chin (and she is the pudgiest)

Locket has a round spot on her chest (a locket) and not a bib.

Velvet has a large bib, not white on her face, and a white "slash mark" on each of her rear legs.

And Nova is the black teddy bear.