I like the first one's emotional appeal, and she has a sort-of Aubrey Plaza-like look, which is a good thing. it's an interesting look from a low angle. I wish her eyes had a tiny bit more sparkle to them, but at least we can see she had brown eyes. I'm not as fond of the second image, jjust because it's monochrome toned,and she looks so good in the top image.
On the B&W, I LIKE the bit of light play on the inner collar bone area, and on the wisp of hair, and the way the light comes from above, and creates the eyelash shadows, and the subtle under-nose shadow, and the delightful under-the-lower-lip shadow; I think this is a successful lighting/posing pairing.
Always difficult for me to evaluate photos of pretty young lasses that look a lot like one of my favorite actresses of her generation... I think the low camera placement helps make her look stronger, and powerful. Posing is fine, different, it works.