Step 1: All of your forward back slashes should be forward slashes.
Step 2: You don't need to set the env as Laravel's .env does that for you with APP_ENV
Step 3: Add ::1 perso.dev to your windows hosts file
Step 4: Remove directory index.php
Here is what my virtual host looks like
<VirtualHost *:80>
ServerName master.mysite.dev
DocumentRoot "c:/my-site/master-branch/public"
<Directory "c:/my-site/master-branch/public/">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
</VirtualHost>
and your .htaccess file should look similar to this...
<IfModule mod_rewrite.c>
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
RewriteEngine On
# Redirect Trailing Slashes If Not A Folder...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]
# Handle Front Controller...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
# Handle Authorization Header
RewriteCond %{HTTP:Authorization} .
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
</IfModule>