Hm, it's probably because of the link i'm using. You can still save the file though, just rename it to *.png prior to downloading.
There is probably a way that it works without renaming, but that would require me to open every picture i hosted and use the direct link at the top. Something i'm not gonna do.
A design as ancient as the first days of Liberty's expansion into the stars, the Mastodon was originally designed to house the massive engines that enabled her to make the pre-modern voyage to the adjacent systems of the burgeoning nation. As technology developed to allow for more compact and efficient engine technology the fundamental design of the vessel held fast, increasing her cargo storage and deep space capabilities in kind. Forgoing heavy armaments for heavy armor, the Mastodon is designed to handle the rigors of deep space travel beyond the confines of interplanetary boundaries in Liberty's ongoing efforts to secure the resources needed to ensure her growth and survival.
I'm afraid that is as close as i can get, without a lot of trial and error. It's possible that the textures got changed since i rendered it. So i will check that next weekend (if i still remember).