You should see my piece - it's the same idea but the story is slightly different. My Gollum isn't in the team, he just appears out of nowhere in the middle of Quidditch game and is after the little golden ball, hahah. I swear I didn't see your piece before this! I find it quite funny coincidence. What can I say, I like your idea! ;)
You've done precise work here. The perspective is nice and well drawn. Colors are vivid and their poses are dynamic. They're both obviously desperate to get the flying ring! I wonder who will win...