Okay, I'll play along, too!
These pictures were taken about 5 months apart. Maybe less.
Straight hair:
I'm gonna post 2 curly pics. The red-haired one is me with my Henna Head and was taken in July. The other one was taken in February-ish.
Oh, yeah. And I think my hair is curlier than this photo, but I might be high, too.