banner art help

Heyy, I wanted to upload a new banner because I changed my channel name. But Youtube said that I need to use a PNG, JPG or GIF file. So I tried different pictures that worked before and I even downloaded a random picture from google and they all refused to work. Youtube keeps saying the same...

Hello everyone, So I've been working away at my channel for almost 4 years now, yet I never got it a proper banner, just a few basic ones I made. So seeing how the 4 year anniversary is coming up, I decided to iron out everything on my channel, including getting a proper banner. Now here is...

I don't know if this is the right place or not, but I was wondering what I should do for my banner. Right now I'm not happy with my banner, and I would like some advice for whether I just keep it or get something else. I would like to get some type of cartoon art eventually but I don't no if I...