You have control over the modification of the layout (including the sidebar positioning of left or right) and on the widgets theme options you can control if the sidebar is 1/4 or 1/3 (one click). Also: when creating a page there are two layouts, one for the standard blog and another for the Post Format, Masonry layout.
You’ll have control over what categories are shown on the blog page and items like the displayed metadata: post date, post author, post categories, post comments. Within theme options you’ll also control the pagination size, style, position and color selections allowing you to customize the design of your blog.
How to access: Appearance > Theme Options > Blog Page