Tested my second mold yesterday, here are the results:
The detail reproduction is quite good, much better than is visible in the picture.
The hand with the meat hook of the guy on the right is separate, the other two are one-piece castings. I'll probably paint them tonight, if time allows.
I particularly like the outcome of the prison cell door. To be honest I hadn't expected that parts as thin as the bars could be cast at all. Next are some wrought-iron victorian fences, and if these work, I'll try out a skeleton in a cage, or something like that.