In the past I spent a lot of time drawing. I think they are things that you lose when you grow up, time and the ability to draw if you do not practice. The challenge you did is quite difficult. at least I think so, because I understand perfectly how difficult it is to draw an eye. Above all, to make both of them look good, that was always my Achilles heel. my creations were amorphous -Lol-

But this is not your case, you are talented, and it is appreciated that you share your talent with us. well done .