Abstract transitions | After Effects
https://elements.envato.com/abstract-transitions-after-effects-3ZVPFDH
Free 
Shape Transitions | After Effects
https://elements.envato.com/shape-transitions-after-effects-2PPRW9Y
Free 
Brush Maker (Transition Kit)
文件下载,https://downloads.cgguy.com/d/vianetsp/Preview/04zipfiles/2022/05/27/CGguy202205270839.zip
Free 