On the first one, I really didn't get the serpentine thing around the AG logo, other than that, it is pretty good. on the third one, I think that it would be good for like a avatar for something, but not for a full- blown wallpaper. I have an idea for one, I'll have to find some time to make it.
I thing the 1st one is nicely done, not something I care much for but it's still very good, the flaming Armourgames Logo is sorta, avartar-ish. Or part of a Forum Signature. Maybe it's because it's animated?
perhaps that with...a fleur de lis in a dark mauve-rust combo...and snakes coiling around at the edges, eating their tails. Y'know, like that Alchemic symbol for eternity? Or have that...with a green glow, instead of orange...and a matrix-like rain of bynary...OR PUNK-O-MATIC CODE!!!!! With a fade of neon green around the corners!
I don't know what half of that stuff looks like or is, but that sounds cool...although I don't think you could just randomly throw the flaming AG symbol in there and have it fit in, I just don't think that'd flow very well, it'd look cool and would be the best AG logo-thing like toilet paper is the best thing for everyone in the real world here, maybe it's just because I can't think of it as a wallpaper o_o