The character looks like the Simpson's character Sideshow Bob! (could be good or bad)
Actual light coming from the lightpost would be nice.
The perspective of the boxes are real weird. Like, it looks like a trapazoid uneven box.
As for animations I found working at lower fps then stretching the animation helpful (probabally bad advice). Try playing arround with programs like Pivot to learn about limb structure and solid movement. I found it helpful for when I went back to pixel works.

My game level so far:



Any suggestions for coloring?

Gameplay video part 2: www.youtube.com/watch?v=AxjyoUvKlQY

Edited by proandrius - 04 August 2012 at 2:16pm

heres a quick edit on the new scene

basically right now everything is kind of gray and low contrast.  Make some things pop out more, have light hit some surfaces more, like the top of things.  Add shadows and highlights.  The pipes look flat, try to make them look like there are popping out from the wall not just drawn on the wall.