Gorgeous BL With Art That Belongs In The Louvre

Gorgeous yaoi works of art!
•There are both happy/slice-of-life and tragic/toxic stories, so please read the tags of each first (Some include mentions/depictions of rape, suicide, death, etc.)
•This is a MANGA ONLY (no manhwa) list and are in no particular order
Sauce: Touch Within The Abyss (one of my personal all-time faves)