POP Inspired landscape

Im submitting this for the task this week and to try somthing different. I wanted to make an enviroment concept drawing on photoshop only using the brushes and with no photomanipulation just to see how far i could push it. Its based on the landscapes you see in one of the prince of persia games.

[update] sharpened up the tones and colours, my aim is to get rid of the line work however its still not quite there yet. Better keep pushing it