How realistic can pencil drawings be if only using a normal HB

First portrait using a 4B pencil, couldn't get it super dark but i'd love some critiques on this piece! : r/learnart

Can you have some phenomenally realistic pencil drawing? If yes

What pencil should beginners use for sketching a realistic human

What are the best types of markers/colored pencils to use to make

How long will it take to draw a realistic portrait? - Quora

How realistic can pencil drawings be if only using a normal HB pencil? - Quora

How realistic can pencil drawings be if only using a normal HB pencil? - Quora

Can You Draw With Mechanical Pencils? YES! Here's How

Which type of pencil do you use to draw pictures? - Quora

What are some of the most realistic pencil drawings you have come

How realistic can pencil drawings be if only using a normal HB pencil? - Quora

Drawing a Realistic Mouth with Graphite, Matheus Macedo

What type of mechanical pencil is suitable for hyper-realistic drawings? - Quora