I count 5, so I can get you that far. 1/2 are the same. Lighting makes it hard, hair is different, but right breast mole is the same. 3/6 are the obvious birth mark.
You're right about 3/6 for obvious reasons, but I'm not so sure about 1/2. The bone structure in her face, specifically her brow and nose are just too different.
Admittedly, it's hard to say conclusively. The left's eyebrows are drawn on with makeup, and the angle of the light source and shadow obscure the nose proportions. The right's stretched posture by comparison makes it hard to pin down the diff. I think the strongest argument against is the lower abdomen mole that is hard to discount as an anomaly of lighting and exposure. However, there is also the mole match on the chin.