I tried to only use default KDE panels, not latte or so.

Global theme: https://www.pling.com/p/1897311

Icon theme: https://www.pling.com/p/2037657

Color theme: https://store.kde.org/p/1640906

Wallpaper (couldn't find og artist): https://mylivewallpapers.com/fantasy/portal-live-wallpaper-2/