Also checkout this too: https://sraye.itch.io/mature-male-character-sprites
Viewing post in Character Creator - Sutemo comments
They look amazing but the license do not allow usage in a character creator. I would have to recreate similar images.
But if you want you can easily add the assets in this character creator using the feature to "Add custom assets". You can even create a pack (for yourself) so you don't need to do this process again.