PugImageFinally.m

[pugImageOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) 
	{
		UIImage * pugImage = (UIImage *)responseObject; 
		// 1
		[[NSOperationQueue mainQueue] addOperationWithBlock:^
		{
			imageBlock(pugImage);
			[self.tableView reloadData];
		}];
	}
			failure:^(AFHTTPRequestOperation *operation, NSError *error)
	{
		NSLog(@"The error: %@", error);
	}];
		//2
[pugRushQueue addOperation:pugImageOperation];