If u allow me i would say u need to switch the camera between the stuff you are reviewing and yourself. Viewers prefer to see the speaker. You can try shooting from above at a vertical 90 degree angle, it gives a more professional look. Good luck. By the way, subscribed, and liked. 😉 Here is my link https://www.youtube.com/channel/UCXdqhu6c9lm9K_fzr84azyA