I never did manage to get those pixies looking right. I was thinking "glows with wings and maybe light trails" but it just wasn't coming together. Shame. But these fill the same niche.
They're wind spirits of some kind. Perhaps elementals? Meh. Cosmology comes second to imagery. They're critters rather than peeps, which is nice for change. I didn't think they were interesting enough on their own so I gave them gust FX as bases/stands.
Little leery of the high linecount on the leaves, but they don't look out of place and I think they're pretty. Also they're great scene-setters. I think they make it obvious that the swirlies represent wind, and that there's a forest context. I tried to arrange them in sensible patterns like they're blowing around rather than just randomly scattered.
I wasn't sure about the arms. Worried that on something non-humanoid, stick-and-ball arms would look like antennae or something weird, but I think it works ok. Together with the eye/face it anthropomorphises them just enough.
Also unsure about the colour. The swooshes look nice with that greenish tint, but the critters themselves... I didn't know what to do. Blue seems traditional for air elementals but it's not quite right. I didn't want to take them all the way to stark white though. Maybe I should have? I also thought I could do something with another colour on the eyes, but it ended up making them look like they were peering out from hoods.
Details are totally unswappable. Swooshes and critters are carefully matched and posed. I don't feel bad about that though, since they're all total redraws.
I've got an old whirlwindy-looking critter that I think I should revamp. He'd only need a little tweaking to match these guys' style and would make a nice boss-type version.