Commentary based on Description: I don't know. I think what color you do add in some of your darker palette pieces adds emphasis. Besides, You've had your splurge of color before when you tossed in "92.6% more Unicorn Power" (thedurrrrian.deviantart.com/ar…). You just do REALLY WELL with dark palettes (though color is nice touch on occasion such as this piece) Also... adding color Durrrrian, doesn't necessarily mean happiness... especially when a giant creature of destruction is coming after you. I do like the knight's coloring though. That did add happiness. Keep up with the awesome artwork!
Focusing more on the piece: The color did add some interest despite the huge hungry looking beast coming for what could perhaps be the outskirts of town or even docks(?). The knight's coloring isn't over powering with the complimentary darker green tinted armor with the bright scarlet red cloth. The surrounding oranges and light-colored browns, draw the eye to examine the whole picture which feels well balanced color -wise. On the characters themselves, I love how the knight seems so chill about the situation. xD I think this piece is excellent.