As others have said the ex. Is a traditional art piece. Done likely like copics. I can't imagine getting the textured oxidized blends on paper ( which seems like what you after) is possible. Just because as you use markers it kinda changes the paper texture/grains with each stroke. other than for layering, I have yet to find a brush that mimics the exact use of alcohol markers.

You could definitely get something similar with a texture overlay. Try blending and erasing on the layer mask of the texture to get a more inconsistent texture like on paper.

To get a similar brush nib affect.These are the asset store codes for some brushes I use that might help you.

1582351 1692034

This ones a line brush i think, but I use it to color. 1642324