Instead of looking at 'example answers' (which is, frankly ****-poor advice at degree level (not least because it is an easy route to plagiarism), this is not A Level) you could get into the habit of reading academic papers in relevant journals.
This has two big benefits: first, it gets you used to reading the things, which is a skill all of its own, and second, it shows you how academic papers should be written - including your own. The more familiar you are, the easier it is to replicate the style.
Other general tips:
Make sure you have a clear argument and that everything in the paper builds or contributes to it.
Think of some counter arguments and then deal with them.
Deal with few things in detail rather than loads of things at surface-level.