Those storms are pretty cute! I like how they went from a bubble to a cloud. I think some lighting or lightning flash could be cool!
Also, I started with a frog character myself on my Jam game I didn't get very far on last month, if it's not spammy to link it, maybe this will inspire you? Anyway, I got stuck on animating a bipedal frog too! His scarf looks really good on the green, really pops.
What does WSPEED stand for?
[/edit] I'm sorry, that's not a cloud :.(