Is there a teacher who knows hard pen calligraphy? Evaluate my calligraphy.

There are several problems with your handwriting:

Shelf structure is not harmonious, such as left and right structure, up and down structure and uncertain size.

Irregular strokes are not as good as a horizontal line on "open" and "back", and the prefix "tube" looks uncomfortable.

The style of writing is incoherent, and some words and strokes are blunt, such as Golden Lock.

Not enough practice.