I need a youtube banner design

My channel will be focused on helping someone with zero understanding about money, finance, and bitcoin understand what bitcoin is by explaining the important technology, economics, and finance aspects that go into understanding it. It's meant to break down everything in bite sized pieces so that anyone can follow along. Ultimately, the goal is to create a collection of videos that anyone can watch, follow along, and understand the significance of bitcoin, bit by bit. Attached is what I have currently. I'd like something more eye-catching that suggests someone with good taste and artistic ability actually put some time into it.