PHP If/else get_field() with WordPress

I'm trying to give a client some options in the WP backend to customize a carousel that is displayed on their website's homepage. I am using Advanced Custom Fields to handle getting the input from the client. I want to give them two options:

Option #1) Allows the client to insert a string of text to be displayed ('carousel_title_text')

Option #2) Allows the client to upload a logo to be displayed ('carousel_logo')

I want the code to check for title text, and if there is none, display the logo instead. I haven't yet decided what will happen if both fields are empty. Anyway, here is what I've come up with:

<?
if( get_field('carousel_title_text') ): {?>
<h2 class="promo"><?php the_field('carousel_title_text');?></h2>
<? } elseif( get_field('carousel_logo') ):
{
the_field('carousel_logo');
}
endif;
?>

The 'carousel_title_text' displays as long as there is an input, but when it's empty and 'carousel_logo' is not, it does not properly output the logo. Can anyone tell me what I'm doing wrong or if there's a better approach?

Thanks in advance,