I kept looking at the pattern and then your shirt, and at first, I thought you had uploaded the wrong image. Then I remembered it was you, and you are magical.
I have a few favorite patterns that I use as a starting point. This one is “front with darts, back with yoke.” Some of my others in heavy rotation are “front with dart, back with center seam,” “raglan,” and “princess seam.”
I decide if I’m in the mood to make a collar, and if so, what kind. Collars and necklines are interchangeable, for the most part.
Button front or not? Sleeves, long or short, puffy or straight?
I don’t tend to sew patterns with decorative elements like interesting seaming or embelishments, because I favor prints, and you can’t see the sewing details in the busy-ness of a print.