Now I have seen these four thumbnails, I'd have to say that in terms of the actual look of the shots David Lyga has a point, backed by the Greg Davis thumbnails. I can see very little wrong with the 68F neg.
Yes in comparison with the 100F neg the colour chart has flaws but unless these showed up in the print colour and no sign of that here then most members of Joe Public would be happy with these.
I had expected to see bigger problems than this at 68F. If I had no processor but wanted to try C41 at room temp then these shots would encourage me to have a go.