I will comment telling you the following:
a. What initially prompted me to like the character enough to write about him/her.
b. One of his/her best traits.
c. One of his/her worst traits.
d. How easy/difficult I find it to write the character.
e. The story/chapter/paragraph/phrase where I feel that I truly captured the character*.
f. My plans (if any) to write the character in the near future.