Three versions of one face show the exact range you would get, so the result sells itself. This is a trend-search click, the image answers the searcher's real question, will mine look good, and the title carries the tool name for anyone hunting it.
How the packaging works
Title
The title names the tool and the task people were searching for.
Thumbnail
The image shows three real avatar results made from one face.
Remix this
Use this when your output is visual and the viewer is deciding whether to try a tool. Show three real results side by side rather than one perfect pick, because range reads honest where a single best case reads staged.
The transferable lesson
Show the honest range of results, not one showpiece.