Modular Sci Fi interior part. 2

Tonight I finally got off my butt and made something. I used some green stuff and bits from my box of terrain making crap to give some character to my Hexbug stuff.

The thing, however,  is that once added, I can't un-add them. Thus I intend to leave the majority blank and just paint some details into the walls. I want them as generic as can be.

Rubble and junk in a corridor. Aliens was my inspiration but I want more scatter terrain perhaps. I am dreaming up solid pieces that I could hook onto the edges to keep in place.

 A few bits. Nothing fancy.  A ship could still land here.