As to why I still decided to purchase it, I also happen to be strongly anti-plastic, and this was the only bottle made out of glass in the oil section that wasn't absurdly highly priced.
I mean, I wish I am wrong and it is actually human-made; what do you reckon?
Corridor on youtube have some great videos on why A.I "art" looks the way it does. The idea is that it always tries to offset colours. If it has a bunch of light colours it needs to have a bunch of dark colors. Overall that gives these pictures that cartoon look, and why they pretty much always look the same or similar.