Abyss is actually my first themed ride (well not if you count Mirage, but I built that a long time ago). The ride starts off in Purgatory, where you are awaiting your eternity in Hell. When it is your turn, you board the train and are launched into Hell (a spaghetti bowl of helixes, loop-de-loop inversions, all in a pitch black building). This is also my first coaster to use multicolored track. The launch and brakes fade from red to black, and black to red.
Pictures:

Layout.

3D View.

Launch from Station (0-55 in under 2 seconds).

Spaghetti Bowl.

Building exterior.
Give me your thoughts.
-disaster249