She looks scared that a goopy goblin or a shifty skeleton will pop out of nowhere and try to convince her to follow the light of Jehovah.
Nice artwork. The effect of having the character and the background in two different styles looks cool. The shading of the character doesn't fit the environment and also, a shadow facing away from the character (a shadow going towards the door behind her down the hallway) would have made more sense than it only being between her legs. The artwork is fine it could use a little more work. Overall, it gets a thumbs up from me.