These are sketches for practice. I finish them with charcoal powder, graphite pencil and pencil. The original images are from online sites or books, and I sketched them in this way. I finish most of the drawing in class.
The original pictures are the scenery in Europe. Some are streets, some are interior. Even two of them are the factory. All the images are the photo from last century. I was inspired from my art history class. The professor showed some photos after the World War II. I was shocked at that moment and did some researched after class. Finally, I sketched them.