I have never seen either of these, so I couldn't tell you for sure -- but from what I see, they look like your typical posters.  Apparently, two of them were made.  One is of Aki, in a tall presentation of the widely used publicity shot.  The other is, much to my surprise, a wide shot of Jane from the wasteland scene.
 

Both can be ordered through select online anime stores, or through Great Eastern's homepage.