Be sure to check out the link provided by Prism99. This shows what the quilt looks like when many 9-patches are put together.
When you show a little picture of just a few patches, you don't see the effect of the rows of blocks that will appear in the quilt when you have more together. So no. 3 is an Irish Chain, but instead of black, put the background fabric there. Using background fabric in the 4 patches of the 9-patch, and 5 randomly placed colors for the 5 other patches will give you the effect seen in the link.
The Single Irish Chain pattern is made up from a 9-patch, alternating the background fabric and the main fabric. (Quote from link.)
