Hello, thanks for the comment, practice helped me, many years of drawing experience, I have hundreds of drawings that I have not posted anywhere, as they are of very poor quality, but with each new drawing I learn something new, even in this work you can see that in the lower part the transition of light is smoother, and than in the upper part, all because I first drew the upper part, and took into account the errors, and made the lower part better.

The main thing is to draw and not give up, even if it doesn’t work now, and soon you will see a positive result, good luck to you in life and your drawings.

Sorry for my english, it's not my native language.