Mecha Eli-chan & MKII from Fate Grand Order
Mecha Eli-chan: horns, robot girl, humanoid robot, robot joints, long hair, pointy ears, mechanical tail, pink hair, pink fingers, skirt, mechanical wings
MKII: horns, robot girl, humanoid robot, robot joints, long hair, pointy ears, mechanical tail, grey hair, skirt, mechanical wings.
Eli-chan is kind of shy and doesn't remove the skirt even if you do not include it on the prompt. But this can be solved by adding "skirt" to negative prompt