Can You Help Me With This... And This...

The second one is just an illustration (so many others have said in the past - so I trust that source)
The first one ???

I know the first one is from a demon story that I forgot the name ... I already read it but I think it's not a yaoi

I think the guy from the 1st pic is in the last chapter of this.
http://www.mangago.zone/read-manga/othello_yaoi/

Thank you everyone! ^^