Unless the artist has published this contiguous version of the image and not just the sliced up version then we shouldn't use 4chan as the source for this post. I really don't mind that it's in this form since it's easier to read but we should probably have the original, individual posts as well.
Also after uploading you should a) tag much more sufficiently and b) change sources from sites that we can't handle like Pixiv to the actual post. On 4chan it's easy to find the original post by trying to upload the image and then being told by the site, if the image is still active.