Thanks for the critics guys, i'm going to try to fix it, BTW can i edit a weekly challenge P.A. ?

 I have to agree with Artic that this piece is very hard to read.

I can't clearly see where the robot begins/ends and how it is posed. The person screaming for help also isn't really clearly defined, except for the speechbubble with the text that is a bit hard to read. I have no idea if the grey blocks are supposed to be a wall or a building and the one building that's there may need to be defined a bit more clearly with some texture.

Also, like Artic pointed out, the brown & orange in the background doesn't resemble rocks or clouds clearly enough to tell what is is exactly.

I think that, if you were to shift the perspective a bit, take away the grey block that blocks the view on the robot and tweak the environment and colouring this piece has teh potential to be reallly great. For now, however, it still lacks a bit of "oomph". 

This picture is really hard to understand. First of all I personally never AA text unless its huge. It can just make it harder to read sometimes. The person calling for help looks a little junky. If there wasn't a text bubble coming from them I wouldn't be able to tell that was a person. Also, the buldings and the robot have the same colors, making it really hard to percieve what is part of the robot, and where it starts and ends (without having to stare it down). Speaking of the buildings, buildins are usuing nice, straight, and linear. The ones you have here have some bizarre curves in them. Finally, I have no idea what those orange/brown things are in the back. Rocks? Orange smoke? Explosions?

Fix these things up and you've got yourself a pretty good piece! :)