the reason I made this lora: I found it's pretty hard to draw the back view of angel wings with the large checkpoint models I have used, if you have tried you may understand what I mean.
With this lora, you can draw a rough sketch at first, then upscale it to get a better refined drawing.
Strength suggestion: Generate sketch 1; upscale fix 0.4~0.5
Keywords :1boy/1girl, BackWings,feathers on back...... then followed by wing-related words as below(but it's not 100% accurate, you may get something you didn't mean...):
wing types: angel_wings,feathered_wings/demon_wings,dragon_wings,
Color: white_wings/black_wings,
Other words: symmetrical_wings,spread_wings/folded_wings
It's more likely to get a nude picture from behind by default, you can try to add dress for the character
For checkpoint models, it looks works well with most realistic style models.
sample pictures are generated based on different checkpoints. you can also try with your favorite models.