Is hyper-realistic portraits possible by hatching only?

Well, this question was there in my mind always. Because I strongly believe in good hatching.  

Google AI has provided the answer to the question. 

I need to learn new tricks.  I just love hyper-realistic portraits and I want to make a "more than perfect" portraits. 

And therefore I need to use range of pencils, blending,  layering and mix hatching techniques. 

Any help from blog readers will be helpful and highly appreciated. 

Have a good day.