Hi C&D,
looking at the shredded paper in the compost bin some of it has not been there long so it will take quite a while to rot down but that is no problem if you have 2 others.
I always put tea bags in mine, they rot down fine, occasionally the bag is still there but considering how many I use they mostly go.
Seeing how well your plot had been used I am sure your compost will be fine and have the right stuff in it. The fact that the brassicas were still there helps with your rotation plans too as you can identify where they have been this year. I saw your other post showing your digging too, well done, it has been a god day for it. :)
Have fun,
T.
Ps If your bins are next to each other and it is possible to empty the full one that needs a stir into the empty one that will speed up anything that has not quite rotted down. ;)