I suggest you make a map of the stitches available in your machine. Just take a scrap frabric and either batting or stabilizer, and try all your stitches in order, using the standard size when you turn on the machine and them try them a little larger, but make sure you record what size you tried. You may find that combining two different stitches you can create something unique that you like. In some machines you can combine different sequences, but what I mean is to stitch one and then stitch the other one on top, to fill it more or make it fancier. You could do it both on the same color, on two different colors, or variegated thread, in which case the final product will be a surprise even for you.
Making the map will give you an idea of what stitches are available and in which areas there are empty sections where you an incorporate another stitch.
Maria