Frills tutorial

Since and asked me how I draw clothes and frills, so I made this tutorial.
1. Draw two lines, don't have to be paralleledm but at least not too different.
2. Draw the base line.
3. Imagine there's a vanishing point and draw lines like that. How to draw those lines? You need to guess the edge of each frill.
4. Erase anything behind the second base line.
5. Copy the frill line from below. Add a little more lines to the dress.
Take it to the extreme by adding more details, hahahahxD (good luck shading it)
The ribbons are additional (well the paper had free space, any way). Add zic-zac outlines to make it more detailed.