Any comments on the first 13 lines and possible readers for the finished story are welcome.

The red-skinned man put the chain through a brass loop on the ceiling and yanked it towards the wooden pillar on the far side of the room. Azeem’s hands lifted up carrying the rest of his body with them and he gasped in pain as the rusty handcuffs bruised his wrists. The wooden ceiling creaked from his weight as Azeem tried to balance himself on his legs. The man shouted something toward the doorway and started securing the chain to the pillar. When finished, he came near Azeem. He patted on Azeem’s cheek and shook his head with a grin, showing his white teeth.
A boy showed up carrying a bucket full of some muddy water with both hands. He hurried toward the man, gritting his teeth and ended up splashing some of the water on the

Revised:

Through half-opened eyes Azeem barely noticed the red-skinned man put the chain through the brass loop on the ceiling. As he made futile attempts to let go off the rusty handcuffs on his wrists he felt his own lips move, though the sounds pouring out didn’t make sense. Then the chain pulled his body upwards. He cried out in pain as his sore muscles stretched to their limits. The wooden ceiling of the armory creaked from his weight as Azeem tried to balance on his legs.
“Let me go,” he managed to whisper through gasps. The red-skinned man didn’t reply to him. They never had. Noone had spoken to him since he was captured.
He was about to pass out again when they splashed the

I thought the first sentence was weak--you might be better off plunging us straight into Azeem's POV straight away, show us his fear, his pain in that first sentence to get the reader hooked from the off.

Azeem’s hands lifted up carrying the rest of his body with them I know what you mean but it sounded strange to me and I'm sure there is a more effective way of saying this. Also, the only hint of pain we have in Azeem is a gasp as the handcuffs chaff his wrists, I'd prefer something a little stronger there to make the reader more concerned for him.

started securing the chain to the pillar "secured" would be fine

He patted on Azeem’s cheek and shook his head with a grin, showing his white teeth I don't think you need that "on" there. Also, at the moment it sounds like he's using a grin to shake his head...maybe something like "He patted Azeem's cheek and grinned." might be better?

A boy showed up Where? Is the door wide open? Where are they? In a cell? In a house? I'm having difficulty picturing the scene and vagueness like the boy showing up out of nowhere just makes it harder to picture what is happening here.

And that's all I had. I think if you show us more of Azeem (is he afraid? In pain? Does he know this red-skinned man? Does he hate the man? Does he know why he's been captured?) And show us where all this is happening, then it could be a compelling opening, good luck!