Looks like boils or pimples but I can see what you’re trying to do. You’ve got the sense of how water tends to lighten whats under it, and how theres shadows around the droplets to give it definition.

Positioning and refinement of the shine on droplets is important I’d say. Theres almost always a clearly visible shine on droplets like that. Water also reflects the background quite a bit so I would expect these particular droplets to have harsh shadows due to the hair and background being dark/black.

Also water/rain doesn’t really clump in distinct bubbles unless its on a still flat surface. It tends to be one big round shape… so the clumps of water on the bottom right look off. That amount of water is more likely to disturb the surface tension of the droplets and run down her chin in a curved line, maybe even begin the process of falling from her.

Her hair being wet also makes me feel like there should be more water running down her face from the scalp. Stray hairs would stick to her face though you do have a bit of this here, honestly hair is pretty good… Water around her eyebrows would get a bit absorbed into the hairs… Eyelashes are pretty good at maintaining beads of water…

Articulating how water works into words is hard… I would suggest getting a spray bottle and spritzing your arm with some water and taking pictures in different lighting to get a sense of how it works. Maybe even add a bit of skin safe water based dye to see if different colours help you see the shadows and reflections more clearly.