I see your first language is French, I hope you can translate my comment as I don't speak French unfortunately, although I've been studying French for eleven years in school.
Anyway, I believe you did an excellent job with this drawing. I know the movie and the character and you drawing is just perfect. It's so real. It's nice to see the initial sketch and it would have been nice to see the whole process as well. Maybe next time you would consider uploading more photos, perhaps. Anyway, great job!
thank you for this nice comment, I think to put more steps of the drawing so that we can see a little better how I did.
On my insta there is the video which details better the different stages of the illustration if you want to see the link is here: https://www.instagram.com/p/BxmLAH3FT74/
You can upload the video on DTube or link the video in your post but better to detail the process :)