Kind of hard to tell from a picture, but they all look normal to me. What usually happens when 38s go bad is a little split at the case mouth running up and down the case. These aren't really dangerous, but they say that they destroy accuracy. This is the main thing I look for when I inspect my cases. Rarely a case will split lengthwise only a much longer split than the little nicks at the mouth. I suppose these could be considered dangerous, but they have never done any harm in my guns.
I have never seen a 38 case separate at the head like rifle cases can.