The audit reports of Wesfarmers and Telstra Group are similar in nature as they present the auditors' views on the effectiveness of the companies' financial statements, management's diligence, and disclosures. The reports state that the companies have prepared their statements according to international reporting frameworks and provided relevant investor information. The audit opinion is unqualified, indicating that the auditors were satisfied with the companies' financials. However, there are limitations to the audit report, including scope limitations, time constraints, detection risks, and auditor qualifications. The main responsibility of the auditors was to ensure proper bookkeeping, effective internal controls, risk identification, and suggesting improvements to management.