Thanks Vortex for helping out!
I have indeed worried about the resolution... I don't think gif is an option with this specific project.
So it would have to be flash. (Unless there is another common animation file type I'm unaware of?)
Does .flv indeed work?
I mean, I think I read deviantArt only accepts .SWF as Flash extension? Can I do that in Photoshop too?
I don't understand why there seem to be so many flash file extensions!
I also don't see the Animation tab in photoshop. Do I need to do something to make it appear? (It doesn't have a timeline yet or anything.)
When I just go to File -> Render Video -> Export
I don't see any flash file extentions as options.
Here, I made a screencap:
Also I don't know what anything else means ._.
Like Document size and stuff. I'm pretty sure my reference sheet is larger than what the Render Video window is showing me.