When Jenny stares into the mirror before attacking and killing Cooper you can just make out etched onto the mirror of the old park information board: "Who Is Mother Nature's Most Dangerous Enemy?".
When Jenny is carrying the injured Steve through the forest, he is to her right. Then an aerial shot follows, where he is to her left. In the next shot, he is to her right again.
When Jenny and Steve come out from water beneath the wooden hut,Jenny is wet and there are some mud stains on her dress but in the next shot her dress is completely black.