>>1730775I'll be frank, pretty much the entire image needs an overhaul. There is no pattern of consistency throughout all the lineart. There are many random areas that get incredibly thin and then incredibly thick right next to each other. You need to be making as few nodes as possible, and making them parallel in terms of location and handles. You also need to pick thicknesses for certain areas and stick with them. Decide the thickness for separate areas like skin, hair, and clothes, and keep it consistent in each area.
If you posted the original, I could show a little of what I mean, but otherwise I would recommend looking at the tutorials in the OP.