Write a comprehensive content optimization audit of a blog post in a {{tone}} tone for {{target_audience}}. Cover headline analysis, introduction assessment, body content review, readability check, on-page SEO review, content gap analysis, engagement optimization, and an action plan. Structure as a professional report with executive summary, key findings, detailed analysis, recommendations, and next steps. Maximum 1500 words. Every recommendation must be specific to {{target_audience}} and the fintech industry. Use plain language. Skip any section if information is unknown. Paste any relevant background information after these instructions before running.