Shrouded Destiny: A Star Wars Long Tale is an in progress fan film directed by Shahbaz Sarwar.
The compositing on that shot included removing the green screen, integrating the background, adding some blaster holes in the background walls, adding some light coming from the door on the right.
Go check Shrouded Destiny: A Star Wars Long Tale's already available content right there!
https://youtu.be/qk5Z67Gq10I
Final product
Breakdown