In the second pic, lower right it looks like they're pulling out a queen cup, I would see if there's any progress on that today.
Good catch. I didn't see that before. If there is a larva in it, then they are(were) queenless. So then the question is what to do. As I see it, there are a couple of options.
One, put the queen in the hive for a day or two and see if they accept her. The downside, if they have started the queen cell they may feel that they are queenright and not accept her. That may have been the reaction that you saw with your queen.
Two, let them raise there own queen. Pull a frame of bees from one of your other hives. Put it in a nuc. Let it sit for awhile so they know they are queenless. Introduce your queen to them. The advantage here is that if there queen doesn't make it back then you could combine them then.
I would tend to go with option two(provided there is a larva in the queen cell).
I hope my posts are helping and not adding to the confusion.