The character is Aquila from manhwa The Cold-Blooded Warrior.

Character Traits:
1girl,aquila_(the cold blooded warrior),light blue hair,long hair,wavy hair,hair between eyes,antenna hair,purple eyes,triangle pupils eyes,halo,small breast,

Clothing & Accessories:
dark navy-blue bodysuit,high neck bodysuit,sleeveless,magenta jacket,bright yellow interior lining,short purple skirt,gold trim skirts,dark navy-blue stocking,

Usage Note:
For best results, apply a weight between 0.6 – 1.0 to maintain character consistency and For weight between 0.8 – 1.0 to maintain clothes consistency.

Some clothing elements may not exactly match the reference images, but the differences are only minor.