Nice! But the initial drops are too similar to a perfect oval. You can try to make some randomness to the initial shape to make it more realistic. (It's much easier to say this than to make a simple model that looks good.)
I did try that, but weirdly shaped drops looked weird on the animation! I was meaning to add a couple of drops close to each other to mitigate that but had no time for experimenting anymore.
Another issue is that when a big drop falls, the small drops that it leaves behind are equally sized and equally spaced.