I had asked on the Dis if anyone could help me figure out how to do these little pick up pleats. I was answered by FairyGoodmother:
Teresa, I think you're on the right track with the Precious Dress, and of course, Carla's sash. As for the "pick-ups" in the skirt, figure that you'll "pinch" about 1.5" per pickup, so however many rows of pickups you want, multiply that by 1.5 to figure your length. Place your pickups kinda in a pattern, like this:
As long as you have the same measurement between them, you'll be fine. Does that make sense?
The pickups are just that...you pick up the fabric, pinch it, then hand stitch it to hold in place. Oftentimes they're then covered up with roses, buttons, jewels.
I then asked her if the pleats should be made on the inside of the dress:
no - you pinch it on the outside and stitch it.
You actually COULD do it from the inside but the look is a bit different.
Play with it; see what look you prefer.
Unfortunately, I didn't get a chance to try this out on the dress I was making. I plan on trying it someday though! If you've tried it, send me a picture and I'll add it to this post.