HI, This is my entry for Category B:
The Evil wizard from series 13
The Evil wizard Tower!
there are 3 floor underground and 6 over,
at the beginning there is the cave and over the secret room with a sacrifical amputee prisoner, over it's the cellar.
at the ground floor we can see the first skeleton servant and over the sleeping room with a brazier.
Over it there is the fireplace with evil throne and second skeleton servant.
next is the evil laboratory and over it a Terrace where the wizard can do it's evil spell.
And at the end the roof cover the tower.
19 by Valerio Carlo Suppo, su Flickr
more detailed photo here:
https://flic.kr/p/EZiCHf