Google Images Cleanup: What to Do With Unwanted Photos
Google Images mirrors the source page. To change an image result, you usually have to change or address the source page first.
Check the source page
Identifying the page that hosts the image is the first step. The route depends on whether the source is still live or has changed.
When the page is gone
If the source page is removed, Google's outdated-content tool is usually the right route.
Sensitive images
Google has dedicated routes for certain sensitive image categories. These have specific criteria.