It was so simple and I wear this shirt all the time now. I made it off the shoulder for the summer. I didn't end up fixing the sleeves with sewing. Instead, I rolled them.
The original shirt: a little too boxy!
A close up of the fabric. I just love the little vines and leaf detail!
Step 1: to make your shirt off the shoulder, try it on and decide how low you want. I made mine pretty much completely off the shoulder, but a smaller hole would stay up more.
Step 3: Sew up the sides, and try it on to see if the shirt fits. It's very to adjust it it-unravel the stitches and try again for a better fit.