WHAT MAKES A GOOD LOGO?
The three things your logo must do
1. Tell them what to type in order to find your channel. (No name or different name means you will not be found)
2. Show the Genre/content that you make. (fortnite gamer, make-up channel, tech reviews - Look like what you do)
3. Reflect the personality of you and your channel. (if you are about family friendly and love, a deaths head suggests otherwise)
Your logo is what represents you and what you do. It is the first impression that you will make to a new audience. If you want to attract people that enjoy your content, you must communicate that content in your logo.