Contrasting Gunner vs Dino [the browns being more on the maroon side, redder]

Dino[?]: Muted, dark The one on the right is kinda sick, the light yellowish green hues could be used as the color for the dinos magic, perhaps the left one could be the color of his minions

Gunner [1st row]: Primitive color scheme, and ghastly color scheme

 Gunner Particles [2nd row]

Arena [Neutral]: 1st row, ground environment; 2nd row, lantern, lights