Thi is fantastic! I am a user, and fan of colored pencil art, and this does the medium justice. Well done! Great balance to the piece and use of angles. I also think you captured a fair deal of each characters personality in their pose. Kudos there too. And lastly, I quite like the stylistic 'R's in the title name and the bordering.
In my opinion, this is one of the best pieces I've seen submitted so far this month. Good luck!