I can't see the pics, but it might just be because I'm at work. Could be a couple different reasons. Some I can think of and I admit some of these are shots in the dark, but maybe you had more yeast in one versus the other (or more viable yeast in one versus the other), more trub and hop debris in one versus the other, more O2 in one versus the other, and so on.
Where they fermented in the same place? If not, temp variations come to mind. If they were fermented in the same place, I wonder if part of it could be due to differences in conductivity between glass and plastic (Better Bottle)...in other words plastic should be a slightly better thermal insulator compared to glass so if the room you fermented in had temp variations, the plastic should be impacted less.
Also with glass versus plastic, I wonder if plastic is better for clearing beer. For example, sliding a better bottle across carpet could result in a static charge and I wonder if this would help clear a beer. Might be an interesting experiment if anyone has the time.