<div class="front-pg-container-left">
    <?php

        global $post;
        $args = array( 'numberposts' => 2, 'category' => 0 );
        $myposts = get_posts( $args );
        foreach( $myposts as $post ) :  setup_postdata($post);
            $image = wp_get_attachment_image_src( get_post_thumbnail_id() );
            $image_url = $image[0];

            echo 'ID is ' . get_post_thumbnail_id() . ' and result is ';
            var_dump( $image );
    ?>
            <div class="front-page-second" style="background-image: url('<?php echo esc_url( $image_url ); ?>');">
                <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
            </div>
        <?php endforeach; ?>
</div>