considering rain is hitting the outsiders, I'd expect an amplification in lighting in certain areas not covered under the umbrella. Regardless however, there's a big lack of details and folds on the girls inside the shop in comparison to the ones outside in the rain.
Ace perspective/background though. You could've amplified this by making rain accumulate/drop in larger quantities in-front of the store
(The gator's tail should have a few droplets of rim-lighting from the store light hitting its wet tail, thus reflecting towards the camera aka us)
edit: considering how bright the store is, if there WERE droplet reflections I'd expect you to meddle with much lighter values for them, almost completely white as it's based on the store's lighting