Thanks guys:) That is making things even clearer.
I think my real concern was that i would upload my character images and artwork, and then some company would just steal them and use them in whatever project - it happened before. After reading Wikia stuff i got the impression that by uploading stuff I was submitting it to some kind of "do anything with it " license.
But now, as i am understanding it, images on Wikia are not subject to the blanket license automatically, and that my images are still protected by copyright just becuse i created them. But you can add if you want license information.
Im gonna wait and see what Wikia says to my last question, but I think what i just said is pretty much it from what i can tell.
I had no idea Wikis and licenses were so complicated. It must have been a real coup for open information supoorters when Creative Commons and wikis came out. I bet before this there were even more draconian and complicated laws that prevented information sharing. This experience is really opening my eyes to the complexity of law. Anyways at the end of the day these are my images - i just want to make sure that by uploading them to my Wikia that im not granting random people the right to use my images for commercial stuff (aside from WIkia)