With Storyboard it possible to layout your blog images like this:
With the Smart Layout feature, all you need to do is select one vertical image and two horizontal (or square) images. Storyboard will recognize that the images you selected can generate this type of layout and will present you with the following window.
Now it’s just a matter of picking which side you want the vertical on, or bypass this step altogether and put the images on a single row.
This feature also works with the reordering feature outlined in the previous post, so you can control the order of two horizontals on the side.