Congratulations!  There are two series that I 
have cels from both the first and last episodes 
(that I know of..).  

First, from Legend of Galactic Heroes



Dusty from episode 1 of the first series and



Julian and Katerina from eps 110, the last 
episode of the regular series.  

From Ryu Knight, I have



Adeu from the very beginning of eps 1 and 



Galden from eps 52, the last episode of the TV 
series.