This LoRA should help adding the look of running mascara, mascara tears.

Trigger word: mascara tears

You might also need:

(mascara tears):1.8, crying, mascara streaks, several streaks of black running makeup,

Watch out for higher settings (past 0.8), as they will influence the face. Best of luck!

This is my first Flux LoRA - not sure it's optimized.