How to say "classical style" or "retro style" in English?

"Classical style" means "classic style".

"Retro style" means "retro style"

Explanation:

classical style

Classical style;

[Example] Simple and fashionable designs are also extracted from the classic style changes, providing brides with a variety of choices.

Style changes also extract simple and easy-to-wear fashion models from classic big designs, providing brides with a variety of choices.

Retro style

[dictionary]? Retro style; Retro style;

[Example] Taiwan Province started the New Year in a retro style, and the bank run looks more like 1997 than in 2007.

Taiwan Province Province seems to start the new year in a retro way: the bank run here is more like 1997 than 2007.