A drawing from my sketchbook that ended up too good not to throw some ink and colours into.
It's Hades at a cemetery (I've used the cemetery of ancient Athens for a model. If I haven't missunderstood anything, such cylindrical gravestones were common for the less wealthy people), feeding a dead with roots of asphodel.
I don't know why he's doing it, though. Maybe it's a poor lost soul who hasn't found its way to the Underworld and Hades has come to take it with him? But strictly speaking, that's Hermes' job, so I really don't know what he's doing there.