I find that the only way to get my digital line-art to look organic is if I resorted to a sketchier style.
The thing about digital inking is that all the mistakes are glaring at you and your brain tells you to fix it immediately, thus making everything stressful.
I've been working with the mindset lately to use ctrl+z as little as possible. My stuff is starting to look a bit better now, but it's still STRESSFUL AS HELL.