Board Thread:Questions and Answers/@comment-29058994-20160716164928/@comment-27384850-20160717050332

You can always upload the image to Imgur so that we can see it.

As for the source, if it's from the anime provide the season and episode or if it's from a game provide the name of the game. Fanart isn't added to the wiki, so most official sources will be screenshots from the anime/games or from the LNs, which naturally are sourced as LN illustrations.