As an SEO specialist, perform keyword research for an e-commerce website specializing in sustainable fashion. Identify high-traffic and low-competition keywords that align with the brand's offerings and target audience. Provide a detailed report that includes keyword difficulty, search volume, and relevance to the site's content strategy. The tone should be analytical and strategic, offering actionable insights for improving the website's search engine visibility. Include recommendations for on-page SEO and content optimization based on the research findings.