Thanks all!
@Cultist #3 The gray footbridge is made from square plastic tubing and surfaced with plastic textrured sheet. The railing I belive is Plasticville HO scale railing for railroad scenery, It has a nice gothic touch.
@Scurv Thanks, its a slime jelly, a jellyfish-like creature that lives in pools of chemical waste. When it senses disturbances on the surface, it rises up and tries to drag you down with its paralyzing tentacles. I got the stats from a cool PDF download somewhere called Underhive Bestiary. The PDF had stats for a bunch of critters from milliasaurs to face eaters.
I plan on making a new playing surface with less orange and green colors, maybe plate steel and concrete, whenever I get the time. The terrain is supposed to be in a grungy abandoned chem-producing area of the Underhive that was overrun by plague (probably from my Deathguard roots hehe), but im thinking the orange chemical spills and green is a bit much

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