Pencil portrait of a girl || looks a little fuzzy

The reason why this picture looks so noisy is beacuse i took the picture with my phone in a very dim light. I couldn't use the flash because then the graphite was reflecting light and the drawing looked more weird. I was supposed to finish the digital painting that i was working on but no electricity so i thought i would make a pencil drawing because its been so long.

I tried to sketch hermoine from harry potter movies but ended up with a little longer face. I feel like the extra noise created by the camera because of the low light gives it a special look.
Let me know your thoughts on this, also check out my previous post for a digital portrait painting.

Here are some process shots: