There are many ways to make variations
For the wavy position of points I’ll reuse that, but it is not mandatory because the wavy distorsion is quite limited
For the number of dot per lines you could also use a noise component to get random but correlated number of dots.
For the gradient I am not sure of the best function to do it, I can say it begin a 0 and end at 1. Sort of S curve could do the trick, with a random power.
wavy curves dot.gh (22.2 KB)
By the way not always easy to replicate hand work, better reference to this work