I'd saw that seller got very good feedbacks. And 
I'm not thinking he/her is selling 
a "reproduction" one, I just worry if the one of 
mine ..... (but it's hardly to say, as I got mine 
from a seller who's in auction for a long time. 
And I did got the sketch with me too)
I just don't know why the cels can be so likely 
with the other one. The sequence in the anime is 
look as a fixed 1 shot, the character didn't 
move....(I'd better go though the TV series again 
^^6)