>>2138879Because as the name "Illustration Archives" says, it's supposed to be an archive. It wouldn't be much of an archive if it didn't properly preserve the images in a lossless format, and instead used compressed JPEGs or PNGs.
Then again, if it was supposed to be an archive, why did they think it was a good idea to put that logo on a non-negligibly large portion of every single image? The world may never know.
>>2129357I'll post the rest from that series.