Project Ashe for Pony. Can generate both normal and mature images.

Hints for specific looks:

-"bangs, blue eyes" for no headgear, add "eyepatch" if wanted

-"hood up, blue-tinted mask, covered eyes"

-"mechanical wings"

The hood and eyepatch may need (X:1.5) on some checkpoint which really want to show the bare eyes. Moreover, some checkpoints are basically unable or very very bad at covering the eyes with the mask; AniVerse based models are one such example. Your best bet is to fiddle with whatever models you use, I have found that Incursio's Meme Diffusion (for 2.5D), Hassaku/waiANINSFWPONYXL (for anime), ponyRealism (for realistic) work very well.

As is often the case, a lower CFG scale is recommended for realistic images.

Example prompt:

Positive:

score_9, score_8_up, score_7_up, (masterpiece, best quality),
1girl, solo, project ashe, white hair, short hair,
bodysuit, skin tight, power armor, gauntlets, gloves, shoulder armor,
mechanical wings,
hood up, blue-tinted mask, covered eyes,
looking at viewer, close-up

Negative:
3d, score_4, score_5, score_6, (bad hand, extra hands, extra fingers, too many fingers, fused fingers, bad arm, distorted arm, extra arms, fused arms, extra legs, missing leg, disembodied leg, extra nipples, detached arm, liquid hand, inverted hand, disembodied limb),