Don't you hate it when things make no sense?
That page has like, all the mediums I have - coloured pencils for characters, markers for the stone, oil and soft pastels for the background. It's like a big mixed bag of textures!

Transcript:
Lucas: It looks empty... Wait. Copper, am I deaf?
Copper: I hope not!
Lucas: That makes no sense! Why can't I hear any- Oh.

Characters:
Lucas (♂) : Arbrool (red)
Finn (♂) : Axaqueue (blue)
Copper (♂) : Stodoc (purple)

Lore:
Axaqueues: blue creatures
Arbrools: red creatures
Etrikits: yellow creatures
Stodocs: purple creatures
Zelonams: Lucas's original species
Ripple: Finn's village
Atlas: the city they're going to