Thread:ADour/@comment-24751588-20130112012446/@comment-4651179-20130113015809

First of all, when you're typing a file name in a gallery template (as well as a profile picture) you don't need to put the and  and even less |thumb|. But also, you have to put the image names between the }}
 * SeeAlso                =

And if you want to create a new heading you should create it, so:

{{Marvel Database:Gallery Template
 * GalleryType            = Fan Art
 * GalleryData            =

Heading 2
 Image2.jpg }}
 * SeeAlso                =