Hi Jorge, I am so delighted to hear your opinion and you are absolutely right I was not satisfied with eyes and you correctly noticed the fold at the nose was even darker before that I slightly lightened up with an eraser.

Also, it was not possible to hide for your eyes that I was a bit hesitant and tried not to destroy the drawing because I really liked it, But you are right I have not work much on the areas of contrast.

I like the idea of squinting is good to see better the the contrast or values.

Your feedback encourages me and motivates to try more and implement what you suggested.

Thank you Jorge :)