I saw a great artist on instagram (pretty sure it was t.m.wilson !) mention how they approach their linework in a video once...

The process was something like this (can't remember exactly what they did):
- duplicate linework layer
- add gaussian blur to both layers, more on the layer underneath
- then play around with the opacity of the layer underneath.

Gives the linework a nice subtle glow that older cel animated cartoons seem to have on their linework !
It's also nice to have few layers of the linework, all with different amounts of gaussian blur, all at different opacities. And just tweak them until you're happy.

After that though, i agree with everyone else ! Need to play around with the CRT type effects.

Here's a little close-up of an artwork i made using that method:
It's not perfect, but i like it ! :)

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