Example Page Image

Art in infobox
When using a character infobox, the image needs to be always transparent and (if possible) full body. Most transparent art can already be found with a bit of searching. (best to search japanese names or look at other wiki's)

Art is not allowed to be nsfw and it should be avoided to upload to much art that is repetitive. (Clothes difference but identical pose, different expression nothing else)

VS

Making Transparents
Should you not be able to find or get art directly from the game and not be skilled in the creation of transparent art, use a free program like https://pixlr.com/de/remove-background/.

Do not use the automatic setting as it can remove hair or bright parts. Instead go into fine setting->reset->magic tool-> light softness. Use this to click on the white background, keep a look out for tiny spots easily missed (hair, fingers, weapons). Other programs like 3D paint can also work but check if a program reduced quality/size significantly. (Art that has to many white spots left will be deleted, so rather spend more time to make sure it looks clean)

Art in Galleries
Galleries can have white background art if it is "concept art or is signed" but do not post white background art otherwise.

Do instead "either" find the art with the drawn background or make it transparent, do not upload both, preferred is a drawn background. Try looking for the highest level of quality you can find. Additional info at Guidelines.