You've got nice use of contrasting colors in the piece ( it's one of the first things I look at ). When I think of representing fear ( in terms of creating art ), I tend to think of giant monsters, or more psychological representations. I do get some sense of fear from this in terms of the environment being destroyed around the character. The reds do a good job of implying more 'evil' actions about to occur in the scene. I will say the second large 'monster' ( at least it looks like one to me ) is a bit more sketchy compared to the rendering of everything else, and that's really the only thing which bothered me a bit here. Overall, nice work!