probably fix the contextualisation sentence at the beginning. something like "following the tragic death of tomas kelly who has become yet another victim of alcohol-fuelled violence, intense debate has reignited as to whether changes should be implemented to Australia's drinking culture".
my teacher always suggested placing the tone at the start of the first paragraph and to evidence the tone with a quote... however may be different for other schools! the same goes with target audience, i referenced that at the start of the first paragraph.
perhaps don't say "poignantly complemented" - it sounds weird. something like, "accompanying the article is a photograph depicting..."
the last sentence of the introduction probably should be taken out. the last sentence of the intro needs to take into consideration the broader implications of the issue - e.g. the safety of mankind, the hedonism of adolescents etc.
while you make analyse sequentially, DO NOT show it! so don't say "the author begins with...". the examiner already knows what the author begins with, you don't need to state it! find a linguistic technique within the article and then find the author's aim. "this immediately allows the readers to feel indignant..." - WHY? need more on the effect for readers. don't use words like "stating" - this suggests you are analysing CONTENT when you should be analysing LANGUAGE. the part where you say "continues by stating" is once again sequential and shows that you are pretty much just restating the article in different terms... this is not your aim in language analysis! "In addition, the audience is told that there were “ninety deaths” though this figure is merely an “underestimation” in an attempt to evoke an appeal to the readers’ fear." - NEVER say "the audience is told". perhaps you could say something like: "the statistical allusion to "ninety deaths" placed in close proximity to the negative connotations contained in "underestimation" implores readers to harbour a sense of disbelief and sympathy for..." you shouldn't use "the author hopes" - this is not a good expression. use something like, "the author attempts". the last few sentences of the paragraph probably need to logically flow better. every technique is aiming to make the reader "more inclined to agree with the author's contention", so you probably shouldn't say that. you could say something like "as a result, readers may view Dr Pilgram's contention with greater conviction since..."
overall, not bad but not great. firstly, you haven't found any techniques? e.g. rhetorical questions, pejoratives, repetition, hyperbole etc. you first need to find these in the article, and then analyse the author's aim and the effect on the readers! you have potential though, so keep working hard! the only way to get better is by getting your work marked and critiqued, and then starting again

all the best! PM if you have any more questions