HELP (adding some text and images)

    // send the mail
    if( !function_exists('gdlr_hotel_mail') ){
        function gdlr_hotel_mail($recipient, $title, $message, $reply_to = ''){
            global $hotel_option;

            $headers = 'From: ' . $hotel_option['recipient-name'] . ' <' . $hotel_option['recipient-mail'] . '>' . "\r\n";
            if( !empty($reply_to) ){
                $headers = $headers . 'Reply-To: ' . $reply_to . ' <' . $reply_to . '>' . "\r\n";
            }
            $headers = $headers . 'Content-Type: text/plain; charset=UTF-8 ' . " \r\n";
            wp_mail($recipient, $title, $message, $headers);       
        }
    }
    
    if( !function_exists('gdlr_hotel_mail_content') ){
        function gdlr_hotel_mail_content($contact, $data, $payment_info, $price){
            $content  = __("Contact Info", "gdlr-hotel") . " \n";
            $content .= __("Name :", "gdlr-hotel") . " {$contact['first_name']}\n";
            $content .= __("Last Name :", "gdlr-hotel") . " {$contact['last_name']}\n";
            $content .= __("Phone :", "gdlr-hotel") . " {$contact['phone']}\n";
            $content .= __("Email :", "gdlr-hotel") . " {$contact['email']}\n";
            $content .= __("Address :", "gdlr-hotel") . " {$contact['address']}\n";
            $content .= __("Additional Note :", "gdlr-hotel") . " {$contact['additional-note']}\n";
            $content .= __("Coupon :", "gdlr-hotel") . " {$contact['coupon']}\n";
            if( !empty($data['gdlr-hotel-branches']) ){
                $term = get_term_by('id', $data['gdlr-hotel-branches'], 'room_category');
                $content .= "Branches : {$term->name}\n";
                
                $category_meta = get_option('gdlr_hotel_branch', array());
                if( !empty($category_meta[$term->slug]['content']) ){
                    $content .= "Location : {$category_meta[$term->slug]['content']}\n";
                }
            }
            $content .= "\n";