For reasons unknown, the source picture is pretty small. However, the official tumblr for Mighty No. 9 made a post promoting their work, with an image of higher resolution. Thus, I used the bookmarklet on that and changed the source to the artist's post.

The DeviantArt version is larger and has differences.

RaisingK said:

The DeviantArt version is larger and has differences.

Well shit. No idea why it's showing up so small on the web page. I put the page through the bookmarklet and it showed up bigger than the tumblr version.
Any idea how I can double check the true size? How did you do it? I already got lectured on the importance of sourcing/commentary importing but feel free to run that by me too.

baconmeh2 said:

Well shit. No idea why it's showing up so small on the web page. I put the page through the bookmarklet and it showed up bigger than the tumblr version.
Any idea how I can double check the true size? How did you do it? I already got lectured on the importance of sourcing/commentary importing but feel free to run that by me too.

The true size is right there on the DeviantArt page, under the commentary ("Image size 863x905px 707.55 KB"). Danbooru sometimes grabs an image sample, but you can just request a replacement in topic #16765 if that happens.