I need to mention the faults that I see by comparing my drawings with the originals,

1. Eyes are too small

2. The line which represents Lip, should go around and behind Chin (first three attempts don't do that)

3. Ears are little lower.

I can't get the sizes exactly every time, otherwise these drawings are decent I guess.

ASIFA-Hollywood Animation Archive: Meta: The $100,000 Animation Drawing Course- Lesson 1