Make sure you have done the following:
The Abstract describes what the report is about.
The contents page has appropriate headings and pages numbers are correct.
Make sure the introduction covers key points, the scope of the report, and the objective it wants to meet.
You have added captions above tables and below images/graphs.
Does the content of the report present the information in a clear way, logical, factual, stay on topic, is to the point?
Does the conclusion state the results, restate main idea's, and does not include any new information?
Are the headings and sub headings clearly labeled?
Are quotes relevant, up-to-date, and correctly referenced?