They look pretty good to me-the black one doesn't look as good but I'm wondering if that's because of the angle the photo was taken. Kind of looks as if you were standing over her so she doesn't show as well in the photo.
The first 2 look pretty good but the blk one is either posed bad or is lacking in quality, Personally I think she has a bad stance and probaly is better than she looks.
What's their ages?
there's better cattle out there but that's were a good bull come's in to take up the slack the cow left. with the right bull on them dont see why you cant get some decent calves out of these heifers ;-)