How can I implement this theme into my wordpress website?

Don’t worry ! When you download the DW Focus quickstart package .zip from your profile, you can use the quickstart package to install. it have included wordpress website.
Note: you can find here for the document guide on how to install the theme: http://cmspioneer.com/designwall/guide/quick-start-installation/
Also, if you have still face there. I can help you install.
Hope this helps !