I am working through the first batch of essays. They are, overall, quite good.
Some additional stylistic points, which I think the sample answers reflect:
• Avoid "narrating" your answer--"the court does X, now the court does Y." Just do X and Y, explaining why it matters.
• Avoid talking (or severely limit how much you talk) about the parties or the other side. Rather than "plaintiff argues X, but plaintiff is wrong about X" or "defendant argues Y, here is how I resolve Y," just analyze and explain X or Y. It saves you words (which are sparse) and reads much better.