Internet Marketing is a people's business. I know, it's not easy, especially in the beginning, but you should learn to do videos and you should also upload your photo in your social profiles.
If you want your prospects to buy from you, you have to build trust with them - and that's much easier, if you show them your face. Let your customers know who you are, and you will soon experience an increasing number of sales.
By the way: Just as important as showing your face is following-up with your prospects once you got them intested in what you offer. More on that tomorrow! :)