Arrows follow the principles of the exercise, but using line weight could make the overlaps a little clearer. The Dissection continuity is broken in the couple places making just floating faces or cylinders. Textures are done well, though, with the silhouette being broken to great effect. On the Intersection exercise the shapes are drawn large and clearly, but the intersection lines are almost non existent. When thinking of these intersection lines remember that they can only be drawn where both shapes exist, with the intersecting lines following the body of the shape in front. The Organic Intersections should be in one pile not several smaller ones on the page, but this is the only issue since the cast shadows look good and they all follow a general layout.