Many japanese studio is very nurves that
their images and characters were used on net
without permission.
 If you visit their site, you can find guideline
for using their images by sutdios.ibut almost 
case japanese text onlyj
@And many of them are very strict.
For example,studio pierrot explain also cels
pictures were included in things they don't admit
to use on net.
@Some sutudio like AIC or CLAMP are generous.
One of strict studio is SUNRISE.
 One Year ago, The rumor spreaded that SUNRAISE
take a legal action for site owners used images 
illegally.
And many site owners remaked their site or closed.