I love the direction you went with this and using soft lines rather than the original line art really makes the piece. At first I didn't notice the rainbow effect on the ghost until I saw the other comments and looked closer, I think it looks good but it may be a little too subtle. I love the aesthetic as it looks all dusty making the city look like it's far away and really brings out the characters. One more thing though, I think the lighting through the bullet holes in the sheet of metal should have been thinner/tighter as it looks as though the light is larger than the holes (I hope that makes sense). Other wise, great work.