I am liking these guys they appear demonic but fun at the same time I definitely want to produce one of my final pieces depicting these characters in a hellish dimension. Possibly revolving round an underworld theme which could link into the references to death in the poem. Perhaps one of the beings is an elder demon reminiscing of its earlier years happily torturing helpless souls, a theme that is also explored in the Echoing Green poem.

Hellzone character development using a previous painting as the source of the background texture.
I can see further possibilities coming out of the silhouettes of these guys.