Realistic pen sketch of a face

Hello everyone
Wishing you all the best of luck
I wanted to take my art skill to another level of realism so i decided to make a blue pen sketch this time around as blue pen is commonly used for realistic arts instead of my regular red pen art.
The practice was done with a lack girl.

I intentionally refused to go further because the face was my main target.

Stage shots

The size of this art is just a little smaller than an A4 paper just as you've seen. The paper type is cardboard paper.
Please, what can you say about it?
Thanks