Hi Jean,
I like #2 the best since you can see her face but I wonder how hard it might be for you to paint all the details because of the strong shadow on most of her face. But I do like the composition except for her legs, I think I would get rid of them and just have her head and torso.
Is this just a standard 4x6? You may already know about this but just in case it has been extremely helpful for me; I go to Kinkos and use a Kodak machine where you can crop what ever you want, i.e. the face and blow it up to an 8x10. The machine also allows you to adjust the brightness and contrast of the photo which would make it much easier to see all the details. And it is pretty inexpensive about $5. Anyway, just thought I'd mention that. But of course if your using a digital camera, just ignore the last paragraph.
Best wishes to you and a quick recovery!