I call this shirt (well, in my mind) the seashell shirt, or a pinwheel shirt, because of the swirly, ruffly design. I tried to resize my shirt, but made it too small, so I added panels to the sides, and that worked well. So I then reattached the sleeves, made a ruffled strip, and sewed it into a spiral pattern. Finished:
The machine was hard to manipulate to get it to move in a spiral, but I finally managed. Tutorial on Made By Lex.