[chibi_sunny]

I think these photoshoot has some "dark"/emotional pictures of Ayu:
http://www.zyrex.org/gallery/Ayumi1/.../CDData/mag14/
http://www.zyrex.org/gallery/Ayumi1/...GirlPop/mag10/
http://www.zyrex.org/gallery/Ayumi1/...Popteen/mag03/
http://www.zyrex.org/gallery/Ayumi1/...Popteen/mag31/
http://www.zyrex.org/gallery/Ayumi1/...Popteen/mag69/
http://www.zyrex.org/gallery/Ayumi1/...onStyle/mag27/
http://www.zyrex.org/gallery/Ayumi1/...SCawaii/mag12/
http://www.zyrex.org/gallery/Ayumi1/...SCawaii/mag15/
http://www.zyrex.org/gallery/Ayumi1/...SCawaii/mag17/
http://www.zyrex.org/gallery/Ayumi1/...SCawaii/mag44/
http://www.zyrex.org/gallery/Ayumi1/...s/Smart/mag76/
http://www.zyrex.org/gallery/Ayumi1/.../Rockin/mag01/
http://www.zyrex.org/gallery/Ayumi1/...ReadyGo/mag39/
http://www.zyrex.org/gallery/Ayumi1/...s/wemen/mag01/
http://www.zyrex.org/gallery/Ayumi1/...gs/ViVi/mag03/
http://www.zyrex.org/gallery/Ayumi1/...s/Sweet/mag50/
http://www.zyrex.org/gallery/Ayumi1/...s/Sweet/mag01/

I'm not sure if these were exactly what you were looking for.