I’ve created a bundle pack with 10 free concrete5 themes found on smartwebprojects.net. Download it here: http://www.denisvlasov.net/concrete5-themes-pack1.zip
Here are the themes included in this pack:
Cordobo Green Park 2
How to install these concrete5 themes:
1. Download the package.
2. Upload everything from ‘themes’ directory to appropriate directory of your concrete5 website.
3. Go to Dashboard of your c5 and open ‘Pages and Themes’ tab.
4. Click ‘Install’ button for a theme.
5. Click ‘Activate’ to apply theme design to existing pages.