(27 January 2017) The artistic representation of a raindrop is that of a teardrop: pointy top, bulky round bottom. In this photo it is obvious that reality is quite different. As can be seen, small raindrops (radius < 1 mm) are spherical.
When they get larger by merging with smaller drops, they rapidly become distorted, irregularly shaped. They are always wide, not high, because the air pushes against the bottom during the fall. Some have a flat base, others are shaped like a hamburger bun.
Finally they are so big that they break up into smaller drops again. These merging and breaking up processes happen continuously with raindrops, between formation high up in the sky and reaching the earth’s surface. Meanwhile they loose weight because water evaporates.
Flash is the keyword. It allows to combine a short shutter time (1/60) with enough light to capture the raindrops in the night. I used f/3.5 and the 60mm macro lens for the detail. I saved the photo in black and white.