Hi,
While using a grid on a static page you can style it to whatever size you wish from 2/3 rows or columns or etc. However, when you are styling with collections, keep in mind that when you style for one, you are styling for all. Even though you may see different items, the styling is only being done to one and then duplicated. The only way to get different styling patterns (similar to a static page) you will have to add custom code to your project.
Please let me know if you have any other questions,
~ Happy Designing ~
Brandon