Mine looks very similar to yours; you can see it here, about halfway down the page:
http://www.quiltingboard.com/t-128274-6.htm#3422703
My jelly roll only had, if I remember correctly, 6 different fabrics. I think that is what creates the blocky-looking design. It seems to me that the people who are using Moda jelly rolls, which have a lot more variety, come up with something completely different. Not better, just different!! I'm going to add on some borders to mine to try and make it twin-sized.