The length of a report is not a primary consideration but clarity is. The style of English which is applauded in a work of literature is not suitable for a technical report. Keep sentences short. Use simple sentence construction. Cross-referencing to figures, tables and other parts of the report are essential.
Lists are perfectly acceptable and it is probably best to put every item in a list on a new line.
All work which is not your own must be properly referenced to one of the recognised standards. Now that we all use wordprocessors, tables and figures are often included in the text, but this need not necessarily be so. You should include either all or none of the figures and tables in the text. If they are not in the text they should appear at the end of the report after the references, in the order in which they occur in the text. Numbering figures, equations etc.