I really liked
>>2444073, but Lain artworks don't deserve this lack of image format knowledge.
7 799 280 bytes - the original lossy JPG.
4 512 890 bytes - anon's downscaled and lossy JPG with even worse artifacting.
0 984 211 bytes - this lossless PNG, built from original by reducing jpg noise.
Sadly, artists rarely know what image formats to use. The original was about 800% larger in filesize than necessary - and only because a lot of errors (jpg artifacts) were saved into the image data. This should be closest to the artist's originally intended contrast.