Geometric shape exercise:

Focusing on body details, composition, close ups:

Drawing the striped, draped garment:

Steps:

1) Under drawing on a separate page. (with a dark marker so it is see through).

2) Drawing silhouette of garment with Prisma (soft) on new page.

3) Shading shadows and folds with the side of the Prisma (soft, blended) or with a grey brush tip marker.

4) Add stripes with marker. Pay attention to the different directions of folds and put in only a few (can be finished when model on break).

5) Adding accents, contrast with Prisma (finished look)

6) Maybe add highlights or blend with white pastel (very gently).