I would have to say as of right now is this Hyper 
Speed Gran Doll cel of Sigil and Hikaru is my 
largest cel.
It's 12" by 26" and it has like 6 or 7 layers. 
and it's the complete set with original 
Background. So far I could make out on sequence 
numbers: B 3 End Key / A 1 Key End / A 1 / C 2 
End / C 2 / C 1 Key End.