It's simple! all started here @doze/leofinance-qrcode, yesterday 
Quickqr.art is not the top of art in ai but to be honest I'm impressed, it works and it's free, for now!
After AI QRCodes being generated, all Qrcodes toke me some time in Photoshop changing the AI generated until I'm satisfied with the result.
And here is the result after some AI and Photoshop editing.
I made 3 LeoFinance QRCodes linking to https://leofinance.io/ an 2 Hive QRCodes linking to https://hive.io/, all are working.
As always feel free to download and use if you want
This is my favorite, quite good, no? AI and Photoshop editing
Next two have not been generated by AI, I've used a free lion head from internet, LeoFinance Standart QRCode and Photoshop, after lots of failed scaning with my mobile phone and having the first one (generated by AI) as example, I was able to came up with a functional one.
This is a variation from the above
hive.io Qrcodes using AI and Photoshop
I guess I can become addicted to QRCodes lol not promising but I might do a few more.