On the first one:
Did you add in the cigarette and tears? The cigarette looks fake, and the tears don't really look natural. I think her facial expression is perfect though.
I think this one would be much better with a more realistic looking cigarette (did you just outline it to see it better against the white background?), and more natural looking tears.
I like 3 & 4 the most (3 more); I think 2 is good too, but there's something about it that just seems 'off' to me...
...Just my opinion.
3 is my favorite. I like 1 too, but it think it falls short because of what I mentioned above.
Sorry if that's all too negative; I do like them, but - you've posted other work that blows these away, IMO.