Those shots are really lovely!
I hope I don't regret choosing the a7iii!
You guys are kinda bumming me out, haha. I wouldn't mind hearing some reasons why a person WOULD want to "upgrade" to a Sony alpha... we're all in this thread for a reason, right?

You must learn the behaviour of your tools.
There is pros and cons to any tool you use.
The lens selection in the Sony FF mirrorless world is very impressive. There is plenty of lens offerings from 3rd party companies as well as fantastic OEM Sony glass.
As you can see there's a wide variety of different types of photography on this thread. I really think Sony excels in wildlife and landscape with realistic render. Canon and Fuji tends to look a tad different. Sony is extremely resistant to looking canvas/painterly. I have a preference to Sony files for my automotive events photography.
Human render is like your viewing it with your own real time eyes. View Canon or Fuji the human subject almost straight out of camera has a different look. I find Sony does very little "cooking" of raw files.
If you are familiar with your 5dc / 35L combo and test your Sony A73 with even a Sigma 35 f/1.4 ART lens ......you'll see a huge difference in render. It will be almost like black and white difference. The A73 will be sharp, sharp and sharp with a tonne of micro contrast. The 35L is no where near as sharp. However if you've been using a 35L mk2 you'd seem similar render to the Sigma 35 f/1.4 ART.
Just give yourself a lot of time to adapt to sony.













