Wordpress - get woocommerce My account page link

You can get the WooCommerce my-account URL as below

<a href="<?php echo get_permalink( get_option('woocommerce_myaccount_page_id') ); ?>" title="<?php _e('My Account',''); ?>"><?php _e('My Account',''); ?></a>

Now you can insert this in completed order mail template too.

<h2> <a href="<?php echo get_permalink( get_option('woocommerce_myaccount_page_id') ); ?>" title="<?php _e('My Account',''); ?>">Go to your account page for review</a> </h2>
<a href="http://animax.cf/product/happy-ninja/#reviews">
    <img src="http://animax.cf/wp-content/uploads/2015/12/product-reviews.png" alt="Product Rating">
</a>

woocommerce wc_get_page_id function will help you to create WooCommerce pages URLs

Examples of usage:

My Account

<?php echo get_permalink( wc_get_page_id( 'myaccount' ) ); ?>

Shop

<?php echo get_permalink( wc_get_page_id( 'shop' ) ); ?>

There is another way to do this using the WooCommerce native endpoints (you can use any of the registered endpoints with WC or third-party plugins that hook into WC): <?php echo esc_url( wc_get_account_endpoint_url( 'edit-account' ) ); ?>

For dashboard you could use something like this <?php echo esc_url( trailingslashit( wc_get_account_endpoint_url( '' ) ) ); ?>