Yuu Watase sketches vary widely in price.  Depends 
on series and character and coloring and style.  
Fushigi Yuugi sketches almost always go for more 
than Ayashi no Ceres.  Characters like Chichiri, 
Nuriko, Hotohori, Tasuki more that characters like 
Chiriko, Miaka.  All ones know that she has done 
are in private collectors galleries and not on 
market, so would have to make some tempting offers 
or have a high wish cel of collectors to be 
considered.