I saw this originally on Wanelo and wanted to make my own. It was simple, but slightly time consuming to make. I found a canvas the size I wanted and printed out the words I wanted on Microsoft Word and arranged them how I wanted them (it took a few tries).
Then I cut out the letters word by word and traced around them. Although time consuming, it kept the text similar rather than free handing. Then I painted the background and finished with a few coats on the letters to make them stand out. It's great because if (and when) we move, I can put it vertically or horizontally depending on the space I have.
It's a great project because you can theme it around anything other than wine types like for a little girl it could be themed around princesses and for boys around different types of trucks or whatever they are into.