I took a look at the hosket rink. Pretty cool, all lit up in the dark. But the blind run in the night from your skyway tower to the rink, with its concealed-ish doors, was not so cool.
As for my wall, I have decided that I will be making it castle-like with a deck on the inside. I didn't lock down the passive trap / staircase corner because I'm still waiting for that staircase and the chest area to be demolished before I finalize it.
Post room: what about the basement? Or are you keeping your herb farm, Brad?