If you want to revisit a human you generated earlier, you can find them in the History. Note that to save the history of your generations, you need to be signed in.
To view the history:
In the upper-right corner, click on your profile.
Click History.
Free users have access to a 7-day history, while subscribers can view generations for 30 days.
In the History gallery, you can:
Click on an image to edit it in Human Generator.
Click x to delete an image.
Delete all images from the gallery using the Clear all button.