thanks for posting I congratulate you. Your illustration is fine. Remember that if I tell you, it is with all the humility and respect you deserve. I do not mean to offend you, on the contrary, to help you is my duty as a draftsman. the perpective is very good, you have to make some hand anatomy sketches because there are some details in the finger this disproportionate hya to look for the understanding of the hands, in the nose a cone is bigger than the other this does not find symmetry in the face. the part of the white top lacked shadow in the right breast so you would give more contrast and highlight better. the ear is very exposed and it has the effect of coming out, it lacks more sombray and it is more attached to the hair that would give it the image inclusion effect. if the right arm you stretched it would have the arm very long and not the visibly normal. human anatomy. in this case, sketching first to achieve the symmetries of the body, thus achieving better perspective to the eye of the spectator. the rest is great. I really like your style reminds me of the style I once used that is called "the three chalk" I hope you keep improving and see more progress in your work you are very good at what you do greetings and success.