This is Zeru ~ sama from my fanfiction "Tenshi no Tatakai" (The Angels' War). He is an angel and the main chara of the story.
I painted the picture with Copic markers and the background with Polychromos.
It took me around 10 hours for the entire picture, "only" one hour for the linearts, but 9 hours for the coloring ^^
SLEEPING ADVERTISING ^^
If you want to know more about Zeru ~ sama here is the fanfiction ->