Is little white cloud writing brush the same as lowercase letters?

Baiyun pen is generally a wool pen with soft strokes, which is suitable for writing small characters and painting. Fancy flowers belong to line pens. Hard nib, small nib; Suitable for fine points such as hook lines: wool brush. Used for calligraphy, painting and tracing. The pen tip is soft and moderate in length, which belongs to a cheap and good brush for both painting and calligraphy.

Big Baiyun Brush: Suitable for writing block letters-also known as inch letters.