Very nice! I love the lion, the sketchy inking you used for it is just awesome. And the kangaroos are really amusing! I second marmalade on the lighting - great job!
Ooh, a lion as a gladiator. X) That's very clever, and very well done. I loooove how you draw lions<3
The giraffe...I love giraffes, too [even have a giraffe character named Trick]...are those belts around his neck? X) That's so awesome. I love his big tongue. So blue. :3 Good job on those hardcore shadows, too! Love that look. So bold...or something.
The roos are awesome, too. D: But I can't think of much to say, cause it's 2.39 am.
The lion is def. my fav, though. I'd consider buying a print of it for $5. (: The lighting is superb. He looks so angelic. Like Aslan or something.