heres smth i made w the method min showed me, i added some watercolour underneath for extra shading. (screenshotted for size)
i love how intuitive it is, it really does capture a wet ink look, but you lose the soft outlines for smth that looks kinda photocopied, you lose the lighter subtleties, but you can draw like this realtime so its easier to deal with.
you have to export the ink and combined correction layer together to merge, then turn luminance to transparency, and add back to the original page. thats kinda inconvenient. i think youd have to put your sketch layer over the top or smth for it to work w that, im not sure.
this is what it looks like without the level correction layer, its still quite nice but loses that wateriness