Sem 2 Week 7 Perspective of Curves

This is a 1 hour architectural drawing of a modern building using a graphite stick. It does not study the perspective of curves, however it studies a very interesting perspective that seems quite difficult to capture.
The foreground consists of the arc like pillars next to the main building and the little gardens in the front of it.
The midground consists of the main building and the background is made out of the big building in the back and the tree.

The drawing does a pretty good job in capturing the difficult angles, however that does not mean it's perfect. The horizon line is represented by the line that passes through the door and the bins near it and it is quite close to the ground, which suggests that the person who drew this piece was sitting. It is a two point perspective drawing, for there are two vanishing points. The orthogonal lines of the base of the building and the top of it that face the viewer unite and form one vanishing point outside of the drawing. The other vanishing point, is formed outside of the drawing by the other two orthogonal lines that face the tree. The tree on the left adds some balance to the composition, however it feels like there should be more detail in that area for it to nicely balance the information on the right.

The drawing is not perfect, as the perspective is a little off, for example on the lines of the building in the midground, which is also the focal point of the drawing, should be narrower. Same goes for the building in the background.