From episode 1, riiiiiight after Lime 
becomes "lime" :) (actually the second scene 
where lime has lime-like emotions).  Complete 
setup, all 6 layers are the first cels in the 
sequence, and the background is A1end (the 
background in the show was the completly black 
besides the cryo-chamber).  But... I like the 
sketch more then the cel ;_; (I am SUCH a sucker 
for mech drawings).