I found the bit about the jellyfish to be funny, the rest has potential, but so far it just doesn't stand out to me in any sort of significant way
This could definitely be a great article showcasing Australian humor, but it needs to be lengthened and focused.
Prose and formatting:
You really need to go through and edit this. You have numerous grammar and spelling errors. You also do not link to any other uncyclopedia pages within your article and there were numerous placed where you could do so. Your article also goes off on tangents that seem to cover Australia in general rather than the focused issue of the article; the country's economy.
You have numerous images that do not overpower the article, which is a huge plus. The downside though is that your pixel size is too small for some of them to make out what they are and the last two images are confusing. The captions are not that funny either. It would do good for the visual lay out to change the pixel size on some and move one or two over to the left side of the screen.
I think the concept you have here is good, all you need to do is hunker down, get the article more focused, lengthen it, and add some more humor.