In the second one you might think about angling her or yourself a little to miminize the glare on the glasses (although I like that it's not in front of her eye), and whether or not you want all the length of her hair in the picture, but it's a lovely photo of her.
I like the B&W other than her sleeves seem to blend somewhat into her sweater (seem to be almost the same shade of gray) - but I like her face in that one, seems to give it more of an edge, sort of a look of intrigue compared to the color version. I like that one in B&W.