I've always wondered, when you post 4 static images in a grid, why do you make the images so small? If you posted the images at their original resolution, and allowed Tumblr to resize them in the post, then people could click the images and view them at a more enjoyable size. You post nice photos so it's such a shame to only be able to look at them when they're no bigger than a matchbox.
Thanks for asking. Most tumblr “edit” makers such as myself size images in photosets to their respective sizes, 245px for 2 images in a row, 160px for 3.