 If you liked
Hebi Shoujo
|
 ...then you might like
Barairo no Kaibutsu
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(As Barairo ni Kaibutsu is a collection of stories, this recommendation is mainly for the Knight of the Ribbon chapter)
Both are creepy vintage manga that deal with the concept of a "snake girl". Both made by veterans of horror manga industry, check them out if you like the aesthetic of oldschool manga.