Trying to recapture her with my sketching skills

It took me one week to sketch this photo, each day I spent 1 hour. I had used Apsara Black charcoal pencils of three grades i.e., hard, medium and soft to have the realistic view. And I had used Apsara 2H, 4H & H graphite pencils to trace out the outlines and for grids. I had used simple eraser and paper blenders not any electrical eraser and paper rolled blenders. I'm not using purely artistic tools to draw the sketches.

Materials used for this work:

Pencils used:

Apsara Graphite Pencils

For pencils click below link.....

https://www.hindustanpencils.com/drawing/

Apsara Charcoal Pencils of three grades Hard, medium And Hard

For pencils click below link.....

https://www.hindustanpencils.com/charcoal-2/

Paper used:

A4 size, Yellow sheets of 120gsm.