Color study

I've been trying to study more about color. I think the easiest one to draw the one has a strong light source.. when it has multiple light sources I get lost and don't know where to put shadow and reflection light! Lighting is one thing, but it is the key to understand colors...

Vegetarian cat!

I did some drawings for a character that I created 3 years ago. He is a vegetarian and he has a pet goldfish.
The story is- he was a war hero back in the day, massacred a lot of mouse. Now the war is over, he regrets all that and spends his day by reading books, taking care of the pet fish and writing a book about the war.

I want to polish this character some more when I have time!