What kind of pen is used for landscape architecture (hand painting)?

Painting is generally a stylus and marker, and sketching is a pen and pencil. A set of 3 needles with 0. 1, 0.3 and 0.5 marks with at least 40 marks will be required.

Just sketch with pencil mechanical pencil, then ink the lines with needle pen, and finally use marker pen. Watercolor pens are divided into oil and water. Personally, I like oily pens. But this varies from person to person.