Doug Piper is working through the free Podcast Launch Accelerator course and during the office hours a couple of weeks ago he asked me about cover art, what to do and not to do. Here's my list of top things to avoid!
Your next steps
I teach podcasting a lot, and usually for free. So, here's what I'd recommend you do next:
P.S. you can start engaging with your listeners using AWeber. It's free, no credit card required: https://www.MarkAsquith.com/AWeber