<?php
                                                $promotion_posts_thumb = ot_get_option($post->ID, 'promotions_post', true);
                                                if ( ! empty( $promotion_posts_thumb ) ) { ?>

                                                            <?php foreach( $promotion_posts_thumb as $promotion_img ) {
                                                            if ( ! empty( $promotion_posts_thumb ) ) {
                                                                ?>

                                                                <img src="<?php echo $promotion_img['promotions_post_img'] ?>" alt="Promotions Thumb" class="img-responsive">

                                                                <?php
                                                                }
                                                            } ?>

                                                <?php }
                                                ?>