Sketching a 2 Point Perspective sketch, creating a merge of different cuboidal spaces. I tried to create the slanting lines showing a sloping plane, carving out these shapes. A sketch shouldn't be started with definite lines, rather more like random scribbles in lighter tones, to decide a final shape and then darken the lines. Always try to extend the lines a bit further. This gives a very thoughtful character to the sketch and keeps the ends sharper.
