Is it possible to have different colored text on posters on the same page

I have been messing around with a page where I have one predominantly black image and one mostly white image but I want to have both of them on my site as posters. Unfortunately, Squarespace won't let me change the color of poster text for one individual poster, so I can't have both be different colored.

Is there any type of fix for this?

Can you share link to your site? We can take a look