It's seems like my banners aren't getting accepted!

Here the one's I made and posted : /

Street Fighter 2(SNES)


Metal Gear Solid(PS)


PaperBoy(NES)


Silent Hill 2


Silent Hill 3


Don't worry the size is 760x160 so it's exactlly right...(You can't see the whole picture...)

Links to the pictures, so that you'll be able to see them better:

Street Fighter 2

Metal Gear Solid

PaperBoy

Silent Hill 2 

Silent Hill 3

Why haven't they accepted them??
If someone here knows what I've done wrong, please tell as soon as possible...!