How do I create image blocks drawn from specific albums?

How would I alter the following code to make it draw the image blocks from a specific album? I would like to create three such blocks, two of which would be random images, and one would be recent images. They would all be drawn from different albums. Here is the code from a similar block on the user profile:

	// Grid block (4 random images in 2 columns from useralbum of the profile's owner)
	$params = array(
  'blocks' => implode('|', array_fill(0, 2, 'randomImage')),
  'itemId' => 'user:'. $profileuser->uid
	);
	$block = gallery_get_block($params, 2);
	print $block['content'];
	

How would I alter it to meet those needs?

Many thanks.