Please click the image to see with a better view.
Nearly getting there! I've shown this picture to a few and many said that the characters are dieing, I guess I need to put some more characters in order to make everything a slightly busier. Plus, it is a concept art after all, the purpose of this picture is more focusing on the overall perspective. But yes, any advices are something to take in with! (Thanks to Jason Hong, got a lot of great advices for myself to improve!)