The larger post images that are about 600 pixels wide by 315 pixels tall work well as decent replacement images for the 200 pixels in width by 200 pixels in height image, especially when sharing a post on Facebook, Twitter, Google+ and LinkedIn.
All of these were made by me, but you are not required to give credit. Please save the images to your own computer. Do not hotlink or direct link these images. If you do, you could find a nasty image on your website if you are caught.
Total Available: 100
Blank Canvas Large Post Images (82) Page 1 – 2 – 3 – 4 – 5
WordPress Large Post Images (5)
Blogging Large Post Images (1)
Social Media Thumbnail Images (5)