1) The green jug appears to have feed in it. Is that your normal feed process, or is that there to creep-feed?
That was my creep feed method before I bought metal creep feeders. I still use them when I remove the nest so that the kits have a warm sheltered place to get off of the wire. Several of us believe that chilling contributes to weaning enteritis- I have never had a case here.
2) The 10-12inch black pots you have hanging. Are those just to give a rest area? Nest boxes? How did you attach them to the cage?
They are a rest area so the rabbits can get off of the wire. It is also good exercise for them to jump in and out. Here is my post showing how to hang them:
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3) Do you have problems with your rabbits chewing on the plastics?
They will chew the plastic, but most don't do much damage. As long as they only swallow small pieces, the plastic will go through their system without any problems.