Hi. This place has Fan Fiction from both Gundam Wing and Angel Sanctuary. If you want to submit so fics, then just go to the link below(Endless Dark). It will take you to a page where you can submit fan fiction. But please put in the subject line that it's a fan fiction for Shinigami Maxwell, otherwise it won't be posted. k? Thanks! Enjoy!
The Depths of Ebony
The Height of Pearl
Shi no Kage
Endless Dark