Hmm, maybe I should pay more attention to 
apartment bills than cel costs.

My auction url is above.

Both have Buy It Now's.

Ryoko -- Tenchi Muyo 2nd TV -- Episode 26
Ryoko only wears that outfit for the 2nd half of 
the final episode.  She's trying to tell Tenchi 
that she's over his romantic fling with Sakuya.  
Non-matching sketch.
[originally from animegame.com]

Relena -- Gundam Wing TV -- Episode 2
Relena only wears this outfit during Episode 2 
and during some flashbacks.  This is from the 
First Time she chases after Heero.  It's a key 
cel with matching sketch.
[originally off Yahoo JP]