Maybe you should something in between this:
"Walls darker and more clouded
Sensing nothing, wishing for something
Nothing shows from these walls
'Walls start to melt
Warmth being felt
Now looking to see
What melts these walls?'
Kinda give it a transition, you should ask yourself: "what made the walls melt?"
"What were the feelings of that wall being put down?" etc.
Overall, its a good poem i think.