I really like the things Zozee said and want to second them all!
For those curved pieces, here's a tip I picked up a few years ago from Eleanor Burns and used last year on my November/Thanksgiving quilt which is a grandmother's fan.
If you like the look you can use 1/2" rickrack along the seam line. You sew the standard 1/4" seam and the rickrack helps you turn the edges nicely.
Here's a link to Eleanor's video, the rickrack part comes in around minute 18. Then is a picture of my Turkey quilt top.
https://www.youtube.com/watch?v=Ktzb2wMMwzc