okay now that there is actually a screencap there and not a blank white image file (I THOUGHT HE WAS JOKING), I will give a real critique!
I'm not sure I like your poles in the middle of the room. What is their purpose? I have the same feeling about those little squares you seem to have around the corners. Maybe if you provide for us a purpose for this level, these little bits of kibble would make perfect sense, but as just a person looking at a random level, I can't say I appreciate them myself.