Bugs Bunny Construction

I was looking for a picture of a character in a rare angle and I found this from The Old Gray Hare.
Bugs is in the same perspective as the background.
His head and chest are more bigger than the rest of his body.
First I trace the line of action, trying to make it as similar as possible without forcing it too much. I have a problem with that.
Then I drew the general forms, like the head, body, etc. I like the ears, you can feel the depth and their volume, very organic.
There's no parallel lines in the drawing, they relate to each other making the forms, going from very separated and being joined in the end or vice versa, like in the legs, arms, cheeks, wrinkles, etc.

Then I added the second level of forms, like the cheeks, the beard and nose.

Finally I added the details like wrinkles, hair, glasses, toes.

I made it in a wrong angle, the head should be bigger and must be more in front towards us. The whole body should be, I think.