I will deduct points for reports that do not have page numbers. Papers should be typed double-spaced. Please don't play games with these settings. A concise, well written report that is less in length than the page limit is acceptable and maybe desirable. I personally know no way to produce a good product that does not include going through iteration after iteration of editing.
Good organization is a key attribute of good writing.
Include headings for each section. Feel free to include subsections that further refine you organization. If your sections and subsections follow a logical flow and tie together, you are much more likely to produce a well-written report. Writing style is important but hard for me discuss precisely. Some of us are good writers, some of us aren't, and most of us have to continuously work to improve our writing.