The base for the sunset scene is this image:
https://www.deviantart.com/menyhei/art/Hutt-Castle-on-Tatooine-514111819
I then composited the other elements.

There are many excellent images that can replace or improve the original mattes.
Battlefront II concept artwork for example:
https://timmcleod.artstation.com/projects/exxmP
I used this to complement the cave exterior matte.

I’m yet to find good replacements for Dagobah… and it really needs something better there.

I’ll share more stuff latter 😉