Are you using a specific palette? Can you maybe share it? (only if its not too much work)
Viewing post in Post-Apocalypse Pixel Art - Asset Pack comments
There's no necessarily a specific strict palette, but i tried to collect every color i used in this pack in this png: https://drive.google.com/file/d/1rhdh0jGsSACpU3ljJpPGeCz0H67-bF7X/view?usp=drive...
If you need it in another format or something like this feel free to ask