The panels were modeled manually in the front view and then extruded along the Y axis. After that I used OCD addon to create the worn out edges. Check out OCD addon to create the worn out / damaged edges here - https://youtu.be/tV6fXg3Sx9U?t=17
The "Meat" :D in the wall was created by a free addon called - Ivy Generator. It's included in the Blender. You can activate it by opening: Edit - Preferences - Addons and then type in "IvyGen". After that I converted the curves to mesh and added displacement texture animation.
The shading & materials are included in the file!
I hope the file comes in handy and thank you for the support and patience as I slowly but gradually create the first "Fishermen" episode. It means a lot to me.
Cheers
Daniel