The first starts with a puffy button (tutorial from sheruknitting.com) and then a round of popcorn stitches (tutorial from Crochet Guru). I added a round of double crochet (spacing as needed to keep the round laying flat), a round of single crochet and then a wavy trim which combined popcorn stitches, chain stitches and single crochet (I'm pretty sure I didn't invent this one but I couldn't find a tutorial on it - sorry!).
Here's a nice tutorial on that from Crochet Guru) and then a ruffle (this stitch I learned while following along with the tutorial from sheruknitting.com on YouTube). When watching the video, make sure to keep going so you can learn how to add a framework behind the ruffle. Then you have something to build the next layer on. Next came a layer of double crochet - again, spaced so the round would lie flat. And finally, a granny square sort of trim around the outside using double crochet and chain stitches.
I'm still learning how to change yarn colors. I'd love it if you couldn't pick out where the new color starts. I'll just keep checking out tutorials and books - I'm sure that info is out there! Let me know if you find it, OK?