Krea is a free theme for WordPress created by Quema Labs.
Krea is a beautiful and free portfolio WordPress theme, perfect for any creative use.
(Description "Krea" Theme from wordpress.org)
You can download Krea for free via the provided download link and include it into your themes folder of your WordPress installation. Also you can directly search for it in the WordPress admin interface in the themes section and install and activate it from there.
More information, screenshots and reviews of Krea Theme can be found here.