Most of us usually try to reply our client with some templates for common messages. This is the common mistake we do always.
Fiverr clients are different from other Marketplace, because they come to solve for their small issues or fix specific issues so we all need to focus on clients requirement, and based on their requirement we need to reply our clients.
Usually small reply with one by one of his questions or issues bring good result always.
You can show some of your previous clients live site sample as your portfolio.
And you can focus Yourself by specifying clients about your unique qualifications.
Thanks // WebBattalion