Feather effect

[Kate32879627oj3t]

 how to do this feather with this effect?

[c.pfaffenbichler]

You could create a custom Brush with some randomization and a Size Fade. 

Or look for a Stock image you can adapt. 

Or see what you can get out of Generative Fill or Firefly (and adapt that as necessary). 

Edit: 

[c.pfaffenbichler]

And for the sparkles/confetti a Brush with Scattering and randomization (and Pressure Sensitivity) might be utilized. 

Edit: