Well, you could always go to the White Room and Zoom in on all the pictures in 1st person mode, then get some crayons and redraw them yourself. Even if you're not an artist, it shouldn't be difficult... Namine isnt exactly what you'd call an ace in the ol' art field. xD;
Also, if you poke around on DeviantArt, some people have made very realistic Namine sketches, such as this.
You'd have to get the artist's consent to use them of course.