All my drawings
No, really, literally all.

Perspective studies

Perspective studies

Drawing interior with two horizons (top pic) and drawing same-height sticks on different distances.

A study from "Fundamentals of educational academic drawing" book by Nikolai Li (in Russian: Николай Ли, Основы учебного академического рисунка).

Months of drawing: 5
Original: 2480*3507