Hey man, I just checked it out and it was a nice video besides the black bars. To help you out I listed some tips on how you can improve your youtube channel dramatically.
Steps:
#1: Get rid of black bars (You can look up some videos to figure this out or edit in a nice overlay like mobile youtubers do to make it look professional and neat.)
#2: Your mic is fine but I do hear some random noises hear and there and tiny static. Download audacity, a free program used to enhance microphone usability. I used it myself and it makes quite a difference cause Mic quality is very important.
#3: Download a program called Heartbeat on the
Google Web Store you can see what popular youtubers use on their tags you can simply steal them on your own video and get way more views.
#4: FILL OUT your description having your twitter, other youtube playlists things about the current video is very important to inform your audience on whats occurring.
That's all for now everything else was good just improve on these and you will be my favorite youtuber <3