I started with a yard and a half of fabric and based the shirt on this Spring Ruffle Top from Sew, Mama, Sew! Using their handy measurement equations I cut out the front and back pieces (on their tutorial they have the measurements for a band that goes around the chest, and then the large pieces--I just combined the two) and the straps. The large pieces were 22" long, 20" wide at the top and 22" wide at the bottom. The straps were 5" by 22" (although when I actually attached them I shortened them to about 14").
I then cut the remaining fabric into 4" strips (approximately 52" long) to use for the flower. I was able to get 6 strips out of the fabric but I only used about 4 and a half.
Now just hem the bottom and you're done! I'm so excited to wear this shirt this spring (hopefully by my birthday it will be warm enough!) And thanks again to Alexis for letting me post this tutorial...hope you enjoyed it!