URL : blog and video : 

https://urielsoto.com/gsap-image-mask-scroll-effect-in-elementor/

Image : full

width and max width : 100%

Image Css Class : circle-mask

Set mask : from 10 – 70%

Css clase for container :

start-gsap-mask

then make custom code in elementor

elemntor >custom code > new template

and make this template work for singular – page and choose the page name to avoid slow down website