Now that your pattern is perfectly fitted to your figure, you've got a pattern template for anything your imagination can come up with. As long as you don't mess with the FITTING elements of the pattern and final measurements, you can play all day long and skip the trial and error with fit. The trial and error with design is another matter! For this first round, step cautiously while playing around with things like sleeve length, adding seams and neckline shapes, but do play, because this is the fun part!
I've created three videos to step you through the basics: