Mostly proxy deck

Played with a buddy recently and he used a mostly custom arts proxy deck.

It was themed around dark souls and some cards were legit wizards cards, but most of them were custom arts of cards using dark souls characters.

I don’t have an issue with this, in fact, I thought it was super cool.

I was a bit confused when he mentioned he used it at his locals the previous week and got a lot of compliments for it. I would have assumed locals would be a place where people might not be chill with that sort of thing (this is casual commander, not CEDH for reference)

In your opinion, would you be cool if someone pulled up to locals with a deck like this?