need some help with rewrite rule

Hi

I need some help with configuring the right conditions for rewrite rule.
Current status:
Options +FollowSymlinks
RewriteEngine on

rewritecond %{http_host} ^gurushots.com [nc]
rewriterule ^(.*)$ http://www.gurushots.com/$1 [r=301,nc]

RewriteCond %{HTTP_HOST} ^.*$
RewriteRule ^index\.php$ "http\:\/\/www\.gurushots\.com" [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^pro-p/([a-zA-Z0-9_-]+)/?$ /pro-profile.php?n=$1

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([a-zA-Z0-9_-]+)/?$ /pro-full-profile.php?n=$1

I would like to add to more rules:
our website is providing professional photo critique.
1. I need to add category rule :  www.site.com/photo-critique/category-name/
these should point to photo-critique-categories.php?n=category-name
2. and also point to specific critique: www.site.com/photo-critique/category-name/critique-name
these should point to photo-critique-by-name.php?n=critique-name

thank you