<div class="excerpt_image">
	<?php if(get_field('excerpt_image')): ?>
		<?php
		$attachment_id = get_field('excerpt_image');
		$size = "thumbnail"; // (thumbnail, medium, large, full or custom size)
		$image = wp_get_attachment_image_src( $attachment_id, $size );
		?>
		<img src="<?php echo $image[0]; ?>" />
	<?php endif; ?>
</div>