Images should clearly depict their subject matter and contain no compression artifacts. The main subject should also be in focus, and the image should contain no distracting elements (for this reason it may be necessary to crop the image). Any files that you add to an article should increase the readers' understanding of the subject matter. The file should also be used for a purpose that cannot be fulfilled by text. It is for this reason chat box images should not be used. Images of your bank assets are also not recommended in articles.