Your channel name should fully represent you and your overall channel theme. Choosing the right name can be a make or break for your channel before you even get it started. Choose wisely.
Your ABOUT page is important. It's one of the ways potential subscribers get to learn what you and your channel are about. It should give an overall idea of what they can expect and can be useful in helping them decide if they want to subscribe.
A channel banner is like the introduction to your channel without you even saying a word. It's what others land on once finding you. Make sure it represents you, your channel, and your brand to the utmost.