This is made with straight line and straight stitch sewing. Nothing fancy, but a great result!
As well as the tute, you will need
1 pair of Skinny leg jeans
Fabric to make the panel that is going to make the flared part. (less than a half metre)
Strip of fabric up to about 4 inches wide, for the bottom of the panel (less than a half metre)
Measuring tape or ruler
Sewing Machine. (you can sew it by hand if you need to, but it will take a lot longer)
About 3 hours (beginners may need longer)
I still think of myself as a beginner (but I am probably more intermediate, or even advanced), so I would say it is suitable for a Beginner project, because there is only one part that is difficult, and that only needs time, concentration and calm.