I don't like the AI generated art for the hero image. If you have the ability to write something like this, you probably have enough money to pay an artist $20 to draw something for it.
I also don't want to commission something for another project. They should get creative control in the process, else it just feels weird.
Where are you finding skilled graphic artists willing to do a project like that of $20? Having hired freelance graphic artists for projects for work, even the smallest things costs hundreds of dollars.
Here, here's someone I'm commissioning now, a basic sketch is $10 https://www.shiroganestudios.com/work/commissions
Given the project is FOSS, they'd probably be fine with that price still.
I could go through a list of literally hundreds of artists where $20 is within budget. The quality of simple logo like is needed here is about on part with what many would do for a telegram sticker, which are often about $5/piece.
Hundreds of dollars is totally reasonable if commercial. This isn't.