Who are you? What do you represent? How do you want the public to perceive you? These are imperative questions you must address when designing your image.. These must be portrayed in your pictures, videos, logo, designs, website and social media. It must be consistent throughout but most importantly truthful.
Are you more casual or business like? Then your photos and logos must tell the same story. Be personal, be honest, be the real you! In this day and age, this is what the masses relate with the most. With social networks, people respond best to honest, natural and candid messages they can relate to. Approach your public this way.