Fictional Characters

I am attempting at drawing a fictional character from a book I love. But I was thinking...most of the time characters aren't clear in my head at all. But this time it's totally different! I've always had a picture of Finn in my head. So I looked some pictures up online, and I found some that describe him perfectly! I can't wait until I'm finished with the drawing, and when I am, I'll make sure to post it on here so you guys can see too!