Apache IP publishes

I have a server with ip public, and I have installed wampserver.

I have configured the httpd.conf:

Listen 0.0.0.0:80 Listen miIpPublica: 80

Order Allow,Deny
Allow from all

my virtual host:

ServerName localhost
DocumentRoot c:/wamp64/www
<Directory  "c:/wamp64/www/">
    Options +Indexes +Includes +FollowSymLinks +MultiViews
    AllowOverride All
    Require all granted
</Directory>

ServerName 181.189.233.140
DocumentRoot c:/wamp64/www
<Directory  "c:/wamp64/www/">
    Options +Indexes +Includes +FollowSymLinks +MultiViews
    AllowOverride All
    Require all granted
</Directory>

However my site is not visible on the internet.