I love this, this is adorable! A few things though: Rue is African american and it really bugs me when people draw her as... not. And I don't know if this is part of the chibi thing but their arms look like they don't have any bones and just kinda waggle around. They should be doing things with their arms instead of keeping them at their sides. Also I don't know if this is part of the chibi technique but they look really young and babyish. Other wise, this is really cute and funny though and is just awesome!! And Prim squeezing Buttercup is really cute, especially his expression!
Each of the characters is well-attuned to the vision of the book, though, as has been mentioned, Rue's skin is darker. Both Effie and Haymitch showcase their personality fantastically: Effie is constantly worrying and Haymitch is constantly not caring. I also enjoy Rue's general pose, because it does feel like she's on the tips of her toes, arms extended, like a bird about to take flight. Katniss seems slightly too confident in respect to her interview(s) with Caesar Flickerman, and Peeta seems to be more of a pretty boy than a soft-spoken charmer, however. Prim seems...a little too happy, and Buttercup does love her more than he appears to. I think it'd be great to see these characters doing more actions, too, similar to Haymitch and Effie's little scene. The style, though, is really unique and pretty to me. Honestly, it's really good and has potential to be better.