From what I have gathered, things such as NPCs, clothing, and other things based on prior art from The Mana World that I have made, are still ok to use because of the fact that they are derivatives of a GPL'd work, the player sprite sheet.
Note: This took place sometime in the 2nd semester of 2008.
I am not sure of what this makes of the Trozz, because it is based on AxlTrozz's concept art.
Also, I will delete any attachments I have made that are possibly slurring the legality of the project.
I am deeply and terribly sorry for this inconvenience.
