I've never seen the show but I like what you've done. Nice line work, nice choice of colors, the overall atmosphere is very dire as well.
Great job!
As far as a minor critique since nothing is perfect, typically(lol), are the little spikey-balls in front of Steven, they don't look is as if they're round. The one on our left(his right) has one spike that should look like its facing toward the viewer more(the longer one above the shading of the ball angled toward Steven). Maybe its just me. Yes I know its something small and stuff.
Can't wait to see more from you!
(should i watch the show?)