My goal was to add more power, (more "slicyness") sharp shapes and deeper colors.
The main inspiration for the effect was a water slash from Genshin Impact
(see image Genshin Imapct screenshot).
The effect was created with the Particle System Editor and Amplify Shader plugin in Unity.
3D model & animation:
Girl GreatSword AnimSet from wemakethegame
Evironment:
Fantasy Adventure Environment