I changed your template because the template you're currently using is adding the Characters category to your page and comes with fields for game appearances and voice actors. That's not supposed to be for users, which is why we created a template specifically to allow users to create as many characters as they want without having the Characters category added. You can find it at Template:UserCharacter. If you don't want me to edit your page to add that template to your page, then please do it yourself. I was only trying to clean up that category.
As for the picture you uploaded, we've stopped allowing uploads of photos or videos that have no relation to Ace Combat or Acepedia management. You can put whatever you want in your avatar (minus offensive material of course) but you can't upload it directly to the wiki.
Thank you for your understanding. I'm sorry if I came off as hostile in any way.