Really great idea, I found this very funny. <img src="e.deviantart.net/emoticons/g/g…" width="17" height="15" alt="" title="Giggle" />
First of all, I'll state out the positives. The idea, and execution of the animation contributes to the humour side of the emote, which is great. The expressions are fantastic, particularly the expression of the green on when he is hit by the blue tard. The falling and the bounciness of the tards are smooth, which makes it pleasant to watch. ^_^
However, I feel the rain, as you said, could use a little work. It seems as though the rain is not falling, and is moving up and down in the air. Maybe one less frame could help the problem?
The transition of the expressions, at times, is a slightly jumpy. The loop seems a little off as well; the eyes of the green tard move up too quickly.
With a few little edits, this emote would be fantastic! :ß
Thanks for the critique Will. Yeah I was lazy with the rain I will give it another try this weekend, hopefully making it a little bit smoother and more realistic. It kind of makes me think like there are a couple of people outside the frame with plastic rain sticks moving them up and down