'Kay. Since I've noticed there are some problems about what can be uploaded to each folder I'll handle you a guide. If you can't access to any of this folders post your work on Featured folder and PM me. I'll move the picture where it belongs and take care of the issue.
Featured: This is for pictures that you know are from Saint Seiya, but the artist doesn't specify what kind of character is. If you see your work here, please, note me and tell me where to put it.
Saint Seiya Fan Art: VERY IMPORTANT. This is for drawings where ther are ONLY canon characters. You can't post a pic with an oc here.
Athena's Saints: Here you post pictures about Bronze, Silver, Gold, Steel Saints or Saintias. But they SHOULD be OCs.
Specters: Same as above, but with Hades' warriors.
Poseidon's Shoguns: Works with oc that are any of the main oceans pilar keepers. Plus any other fan-created scales.
Odin's God Warriors: Same. You shouldn't put characters like Freya or Hilda here, since they are not warriors, but priestess (at least Hilda)
Olimpus's Angels: OCs who are like Ikarus Tounma go here.
Other Gods' Saints: Here belong any Ares Bersekers, Mars Martians, aztek or egipcian warrior... Whatever you want, while they are under the lead of a god.
Other characters: HERE you can upload that picture of the civil sister of your saint, his ancient shaolin sensei or annoying characters like Tatsumi or Hilda.
Gods: Here must go these pictures of non-canon gods. I know they aren't OCs, but each artist have a certain idea of how they look and are.
Demigods: Same as above, but with characters like Heracles or Achiles... Or maybe that Percy Jackson crossover's OCs of you.
Reincarnation: Nope, not the Gods, but the people they have reborn as. Like Julian, Shun or Alone, but with Ocs.
CanonxOC: Couples with formed by a Canon and a Oc. If oyur couple is CanonxCanon you should post it on the 'Saint Seiya Fan Art' folder
OCxOC: Couples only made of OCs.
Groups: For large groups or non romantical couples of people from different Gods. The can have Canon, but should at least have an OC.
Family: Same as above. Should have at least an OC.
Adoptables: Those OC desings you are willing to sell.
Hard to say characters: You have a character who is, at the same time, a reincarnation and a specter? Or simply like Kanon? Put them here.
Fanfiction: I don't care if there isn't a single OC as long as it's readable.
Cosplay: It doesn't matter if it's a canon character or an OC, if it's cosplay it should be here.
Bases: For help getting inspired
Cloths: Any custom cloth desing or any "Omegarization" or redesing of an existing armour.