This is a six-gored bias-cut linen long skirt with a shorter second layer with points.
I planned to make 2 separate skirts and then combine them, but when I've found that the linen I was using was slighty too transparent to allow me to wear one of them alone on a sunny day I just decided to put them together.
Gallery
Pictures will be available soon.
Pattern
I've used a plain 6-gored skirt pattern from Burda (7 2004) that came with three different lenghts; I've made the bottom skirt as suggested in the model, in the longest version, except for the belt, that I skipped.
Then I've cut another skirt, this time leaving space for sewing only to the marked knee-lenght, and then cutting irrecular points directly on the fabric, one on each side gore and three on the front and back, wider, ones. I've then made the skirt as suggested, leaving the bottom edge unfinished, and joined it with the bottom layer with a 3 cm straight belt.