Two main characters in the book (Hum)

I want to introduce about two characters in the book.
One is will.
2 strong adjectives that can describe will: Angry, lovely.
If we watch Will in one way, I can think of "anger", because he fights with his brother "Gavin" a lot, he always argue with his brother. However when we watch him in another way I can think of lovely one guy who is full of anger like 7 or 8 years kids, an air inside his cheek, that looks really cute, but also angry, and also lovely. Therefore when we combine them together we can think of a lovely guy. Also he never gives up, he trys to get anything he wants, especially a horse.

Another chracter is Gavin
2 strong adjectives: Kind, mean.
Gavin is sometimes kind and sometimes mean. My reasons are as follows.
Will always making fun of Gavin, and they always fight each other, and I think that Gavin would be so sad of the situations, and people will think that Gavin is a dull guy, because he doesn't do anything to Will. If I was Gavin, I would flap in his face.
Gavin is also mean, because he also making fun of Will