Ceiling Treatment

I am on the constant look-out for inexpensive and easy DIY ways to infuse architectural detail into my 1973 colonial house. I saw this ceiling treatment done by Kelley Interior Design. It would look great in my living room which has a long, lackluster ceiling. Hmmm, I have think about if I could pull it off. It would take a lot of painters tape and lots of overhead painting to get it right.

Here is my living room ceiling now. Thoughts, is it worth it? (sorry for the terrible iphone pics)