I just wanted to share with you planet's ruins mod I use. I didn't enjoy vanilla's "earth" based images of ruins very much, so I replaced them with amazing and myserious paintings of Polish artist Zdzisław Beksiński, which I found in internet. Concerning the game's atmosphere I feel these images look much better than original ones.
I didn't get his permission (as he already has passed away) so please let me know if I violate any copyrights here by uploading this mod.
Installation
Just unzip the archive into your "Distant Worlds\images\environment\ruins" folder.
(Before replacing you may want to backup original files)
Preview

Download link is inside attachment













