bloom custom text image (bullets)

<script>
( function( $ ) {
    $( document ).ready( function() {
        var optInText = $( ".et_bloom_optin_2 .et_bloom_form_text p" ),
            imageToInsert = "https://cannabiscienza.it/wp-content/uploads/2017/11/Spunta-Cannabiscienza-e1512669091806.png";
        optInText.each( function() {
            var span = $( this ).find( "span" )
            $( "<img class='wpc-custom-mark' src='" + imageToInsert + "'/>" ).insertBefore( span );
        } )
    } );
} )( jQuery );
</script>