That long?
I find it weird that it has been that long since Steve Irwin was killed by that stingray. I guess it isn't that offensive looking at it now as it's been awhile. What I did not like about this cartoon was how the quality of animation was not that good. It was also fairly short and didn't show anything really happening. I guess it would be too insensitive to actually show him getting killed. I felt it went on too long at the end with asking if he was dead or not.
You also need to brush up on your voice acting skills. It seems like you were perhaps too close to the microphone or something. I can understand that it would be interesting to win any kind of award, even if it's not a positive one. You might also want to put on an actual background in the beginning. The shading could be better too.