Every image you generate is kept in your gallery, and any of them can be reused, for free.
Opening the gallery
Dashboard → Gallery shows everything you've made.
The gallery button (the grid icon) on a portrait, building interior, settlement picture or enemy portrait in
the Atlas opens it to pick an image for that spot.
Finding images
Switch between This World and All Worlds.
Search by name.
Load More to see older images.
Reusing an image
From the gallery button, choose any image to use it there. It costs nothing, and works across worlds: a portrait you
made in one world can become a character in another.
Deleting an image
Choose the × on an image (Delete permanently). If it's still in use somewhere, you'll see where first ("This image is
currently used in…"), and deleting it leaves those places without a picture. Choose Delete Anyway or
Delete Forever to confirm. This can't be undone.