Do Project pages have to be the same settings across the entire website?

We have various sized products.  Some are small, some are long or tall.  So far, I'm using the Projects template for two categories and I was hoping to use 4:3 ratio for images on one page, then a more vertical one on the other.  But for some reason, I have to use one for both categories.  Is there a way to customize each section?  Or am I doing it wrong or is there a better way to set up the pages?

Thanks!