how did you made that solid black wall?
The entrance is shaped with hair highlights and the "censored eyes" bar. It's curved into the floor with a beard, the sash, and a tail, and most of the solid black is just shirts, along with a few other items (off the top of my head there was the big wizard beard, a facemask, the big Censored block and some eye makeup) to cover up any gaps. For most of the picture I had to leave the top left corner uncovered so I could still access the menu bar, then I put the last shirt there once everything else was in place.
EDIT: Oh yeah, and there's the Batman mask lower down, behind the dog. I can't believe I forgot that.