Ah. I'll post the template for the admins in your comment. Just edit it in source mode and copy the text. It's a fairly simple process. Just add the picture and edit the size and type "link=(name of the character)" between the file name and the file size.
I usually copy and paste, but if you're having issues doing then edit the page in source mode and select "Add Photo" in the edit menu. From there, you can search for "square", "circle", or whichever button you need. The picture will be posted as text in this manner ((File:btn_square.png|thumb)) (note: The "( )" show up as "[ ]" in actual text). Just delete the "|" symbol and the "thumb" text and the icon will show up.
I apologize if this may sound confusing. I would post pictures but the screenshot button on the computer I'm using doesn't seem to work.
Whenever I create a new character page, I copy the entire thing from top to bottom and then edit it. All of the icons will be in place.
I think there could be Alternate Costume of Character dressed up as other characters from different series, like what Street Fighter X Tekken did. Also some people like their ideas heard from the fan-made game idea.
I did have one idea that, due to most franchises only having one playable character, it could be a bit similar to Pokemon Stadium's Gym Leader Castle in that you'd fight a few weaker characters from the playable character's universe, fight the playable character, and then fight a boss character from that character's universe.
For example, the inFamous universe. Players could face Kuo, Nix, or other conduits before they face Cole/Evil Cole and/or Delsin, and then they would face The Beast before going on to the next universe.