Include everything that is of relevance for the report in the actual report and not just reference where the information can be found. I personally found this confusing and would want everything in the same place.
Focus more on explanations and key figures than on stories. Although story telling is important and conveys emotions, in this context, factual and clear information is desired.
Provide clear structure and processes of people involved in sustainability issues. (graphical depiction/organigram f.e.) Structure and graphical representation of it should be included in the report.
The information in the report seemed one-sided and mostly positive. Negative factors and honest information should be provided to ensure transparency.
More KPIs in order to compare goals set by the company
Reporting needs more self-reflection; showing problems and negative experiences
Less pictures, more CSR-relevance
Add references under paragraphs, to which GRI-guidelines is referred to
Give more information about unresolved problems/topics, negative trends
Include links for further readings/more interactivity
Could be more objective, less promotional, looks partly like an employee newspaper