Looks good so far man
As said above, it is a bit hard to judge off one video, and uploading more videos is definitely the way to improve!
However in saying that, just some tips based off your video I have is to (if possible) have the camera take up the whole screen rather than having the black bars on the edges (so a 16:9 ratio)...
Also I know a lot of people prefer the loud 'bubbly' personality when talking to the camera, personally I liked the way you did it but keep it in mind
Maybe also look into designing a new Avatar and Banner that not only match each other but specifically say what you're doing (like maybe add League Talks in your Avatar, similar to how you have it in your banner)
Other than that man! Your audio quality and cuts are really good and personally I really liked the animations (especially the intro) + humour!