The rain drops look like amoebas under a microscope - there are no water trails, and they are illuminated oddly...The solid color sky, and the crude silhouette scribble drawing just emphasize the "not really rain-like" effect.
It just looks like something done quickly without much effort, sorry.

I feel like the raindrops were created using the blending options, which is not allowed in digital drawing contest. So, can you give us a detailed sbs if you created raindrops without blending options? or if you have used them, kindly change it otherwise it'll effect your entry.

Oh oops - this is my first entry in drawing and I didn't realise that about blending ...
I'll try red flag my entry and get it deleted.
Many thanks

Nice try author! Don't get it deleted, it is good to try and this is how you learn! Best of luck!