I´m not sure whether ou can make it out but the one with the mask (Kurohyou) is crying. I used markers for the OC´s and the elements to make them stand out more from the bg (that turned out as crappy dark clouds). Those usually work well with my ink but it seems like they smear when there are thicker lines?! Ruined another piece. With this one it´s still acceptable.
Lucifer riles Byakuya and the demon group around him up so they fight against him. Personally, he is quite fond of Kurohyou and never really hurt him he just had no other way to make them fight against him earnestly to the point of killing him. Lucifer despises himself due to the circumstances of his birth and has a death-wish.