This is an LyCORIS model based on Illustrious XL and it needs checkpoints compatible with it to produce the best results.
The facial markings and the rest of Belldandy's facial features are all included in the "Belldandy" tag, so no extra description is necessary. Adding them on top of that tag is going to mess them up, either their shape or color. Her outfits aren't included of course. While I could've trained the model to just make her official goddess dress, I find this very restrictive when it comes to generating other outfits.