1.  Have patience when designing.

2.  Have a visual or hardcopy picture of what you're designing.

3.  Arrange the pieces by overlapping, underlapping, enlarging in order to the desired design.

4. Play with the Designs until your comfortable with it's look, sew and sell !

The best part of the Design center is YOU don't have to purchase the item if you don't like it !  Have fun and build on your creativity !  I will be happy to provide more tips and ideas for designing in the near future.