When it come to writing instructions, I'm not your man. Or woman. I would much rather put up a photo and say, here it is, figure it out.
Fortunately, Mary Johnson of http://www.maryquilts.com/ is one of those generous folk who not only make a terrific quilt, but then also take the time to write a comprehensive, full colour set of instructions and put it up on the internet free!
Follow this link to download the instructions for Twisted Happy Blocks. By the way, it's not the only quilt that Mary has on her website, there are dozens are patterns for scrappy quilts. Well worth a visit.