Start with a background layer and add a texture to it. I made my own texture.
Draw a separate layer with all the outlines on it.
Now it's all up to you how to distort these lines.
I used a few copies of this layer, all with a different purpose.
Some were blurred, others had a diffent color, some were made thinner with liquify, others were smugged, etc.
Add a 50% grey layer on top, blending mode overlay and use dodge and born to add more details.
Paint here and there, add more layers, etc, etc.
This is just a quick one, but it's just get the idea.