I'm liking your volume much better in this version - you're projecting your voice more. It's good for characters that like to be in charge... however, Dynamite is a character whose wackiness must be accentuated. She needs to be very shouty - turn it up to 11. The most important thing to remember is to make sure you have lots of fun recording.

This is a character where recording three takes for each line would especially benefit her, if you can give different interpretations of a lines. The reason I say this is because when you say each line in similar ways, the comedy becomes subdued, and that shows in your resubmission. 

Telling you that the Australian accent was unimportant was probably a mistake on my end, because this interpretation of Dynamite sounds very American. If you can strike the balance of keeping some elements of an Australian accent in without doing it incorrectly, while simultaneously being louder and funnier, then you'll be golden. This may sound difficult and daunting, but if you practice enough and enjoy yourself doing so, you'll nail it.