If I knew so many people go for Polygon art) Well some implementations are really great like here https://itch.io/jam/dcjam2023/rate/2007800 . But next time I would definitely take my time to  change it a bit so it wouldn't be that obvious. 

To be fair I guess one reason is that it looks really good (your game does).

I love Synty assets and make liberal use of them in most of my projects (including all my DC jams :D) Usually only the mobs will stand out and make people realize it's from the Synty packs as the backgrounds and environments blend in well. I totally know why you used them since I do too haha :D But it's a good thing, really.

Honestly nothing wrong with using poly if its used a lot, if its done good, then who cares, hell I'm using pixel art in a 3d environment XD