Yo! This looks awesome! :D You could improve the illustration even further by adjusting the lighting a bit. Paint the character darker. This will help the silhouette stand out much more strongly. At the same time, brighten the background slightly—make the green lights a bit more intense and add some glow to the clouds, or to the background overall. On another note: Increase the intensity of the lightning bolt as well, so you can strengthen the light hitting the side of the character, especially around the head. You could also brighten the eyes further so they create a stronger contrast and reinforce the focal point. Darken the pillar in the foreground too, and you could even add another pillar fragment on the left side to help frame the character more effectively. Hope this helps!
