Is there a way to make specific images fade in and appear if the rest of the site is in flex animation style?

Site URL: https://gopher-oboe-gfg8.squarespace.com/

hello, I want these four images in the homepage to fade in instead of flex entrance, but I still want to keep the flex animation style for the whole page.

Here's my website: https://gopher-oboe-gfg8.squarespace.com/ pw: flutes

thank you!