Tellus, brilliant entry - amazing photo!
Some infos for my entry:
Figures f.l.t.r.: Metal Magic Dunwich Detective monster; Asgard alien figure by Nick Bibby (really old ...); Rafm Cthulhu hound; Citadel horror fig (not sure about it ...); centre miniature is the Sludge Gulper from Heresy sculpted by Kev White.
Tanks are Containment Units/Bacta Tanks from Tony Colasante (Ebay: tonygriffon) filled with clear resin from german model railroad company Noch (2K Wasser-Gel).
Background from a Giger-book.
Thanks for all your nice comments.