I like the second placement better. It has more of a sparkle. Fabric #2 (in your line-up) works great in the second layout. If you go with the first layout, I would consider replacing fabric #2 with something of more contrast or Jump.
I think it is so cool that you can do this in the computer! lots of time setting it all up, perhaps; but, well worth it. I must figure out how to do this. very clever.
EDIT: I just saw the third one. Oh Yes! The third one is fabulous! :-)