Custom brush like poured paint?

[EvaBridget]

Hello everybody!
I've been trying to make an uneven line or outline, which looks like uneven amounts of paint or ink are coming out of my tool - kind of like a thick, uneven outline with highlights when done with 100% metallic on. I want it to look a bit like a poured outline. The closest I am getting is by using the oil paint brush with 100% each pressure and loading & 0% thinners and then smoothing with a knive on 0% pressure and 100% softness.

Number 1 is the original oil paint, number 2 is where I smoothed it. I would like it to be really glossy.
Number 3 is where I smoothed over the oil paint tube, which looks more like what I want but I don't just want a thick streak of paint.
Number 4 is the original oil paint smoothed over with the knife. I works better here on the slimmer line. The dimensional look is what I am aiming for but much more glossy.

I hope somebody can help .

Thanks a million!
Eva