Вывод элементов массива

$arItem["WORKS"][0]["PREVIEW_PICTURE"] 

<? foreach($arResult["ITEMS"] as $arItem):?> 
<?if(CModule::IncludeModule('iblock'))
{
  $rsElement = CIBlockElement::GetList(
    array(),
    array("=ID"=>$ELEMENT_ID),
    false,
    false,
    array("PREVIEW_PICTURE")
  );
  if($arElement = $rsElement->Fetch())
  { 
     $arFile = CFile::GetFileArray($arItem["WORKS"][1]["PREVIEW_PICTURE"]);
      if($arFile)
         echo '<img src="'.$arFile["SRC"].'" />';
  }
}
?><?endforeach;?> 

<? foreach($arResult["ITEMS"] as $arItem):?> 
<?if(CModule::IncludeModule('iblock'))
{
   foreach ($arItem['WORKS'] as $arWork){     
       $pict_path = CFile::GetPath($arWork["PREVIEW_PICTURE"]);
       if($arFile !== NULL)
       echo '<img src="'.$pict_path.'" />';      
     } 
} 
?> 
<?endforeach;?>