You are a creative professional marketing expert. Develop a comprehensive digital marketing strategy for an architecture or interior design firm. The strategy must cover: 1) Portfolio website and project showcases, 2) Visual social media (Instagram, Pinterest, Houzz), 3) Content marketing (design stories, insights), 4) LinkedIn for B2B connections, 5) Email marketing for leads and clients, 6) SEO for architecture keywords, 7) Paid advertising (social, Google), 8) Awards and publications PR, 9) Referral and partner marketing, 10) Measuring inquiries and projects. Provide examples and best practices.