I like the colors you used in this, they go relatively well with Izaya. Upon the full view, there's a strange 1px border on the left side of the wall, though, it's gray-greenish. Also, while the text seems interesting, the choice of font is kind of...boring compared to the rest of the background. Something bigger, more grungy or colorful/interesting would perhaps stand out a bit more.
Good job, overall, keep it up!