$objectmanager = \Magento\Framework\App\ObjectManager::getInstance();
$product_id = 32; //Replace with your product ID
$productimages = array();
$product = $objectmanager ->create(‘Magento\Catalog\Model\Product’)->load($product_id);
$productimages = $product->getMediaGalleryImages();
foreach($productimages as $productimage)
{
echo “<img src=”.$productimage[‘url’]. ” width=”100″ height=”100″ />”;
}