Were should I put key words and meta descriptions at Upfront for my main page

I have a problems with SEO things. Were should I put key words and meta descriptions at Upfront for my Main page? For example I have pages like Portfolio and it's easy to put keys using SmartCrawl http://prntscr.com/d8gf4v And what should I do for this one http://site-art.biz.ua/ ?