Wow the link rot on this game is very high, seems like imghippo isn't the best free image hosting service.
Exactly half of the images are broken in some way since the last update(0.4) 4 months ago. Here is the breakdown:
Total images: 118
Images returning 404: 50
Images returning 403: 9
That means there are only 59 unaffected images remaining on the image host.
Here are the remaining images I could download just to prevent more link rot.