NGINX Amazon EC2 keeps loading through 80 port is allowed

Question

I'm trying to host ubuntu 18.4 server on aws ec2 instance. Here is my security group allowed port Though I've allowed 80 port but when i try to see on browser using my public ip it wont loading but it suppose to show nginx welcome screen.

netstat -tuanp | grep 80

output

tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      16912/nginx: master
tcp6       0      0 :::80                   :::*                    LISTEN      16912/nginx: master

My nginx is running perfectly . Here is the status nginx status

My browser showing:

This site can’t be reached my_public_ip took too long to respond.

Please Help!