Help fixing the format of my store listings

I am having a difficult time formating the way items look in my marketplace. The first screenshot shows my main page with global products. I want it to look like the second image list of products.

How do I change the format of my global store to match the single store I have?

Second, I want to make the title on the products in the single store (second image) single spaced and a smaller font. How do I do that?

Thanks for the help!