Here's a cute little Spring-like refashion/remake for you this (Refashion) Friday. If you are one of the hundreds (thousands?) of lucky folks who have a copy of Simplicity 3835 (which you can buy in PDF form here, BTW) or a similar tunic top pattern, there is nothing stopping you from making this project yourself if you fancied, save for the acquisition of an unwanted mens button-up shirt. Like most refashions, the bigger your starting-point garment is, the better. unless you are a teensy lady/child then probably any shirt would be fine for this project.
You'll need to position the CF of the top along the centre of the button stand. Position the front and back pieces low on the shirt so you can incorporate the curved hemline as well. The contrast bow detail was made using the cuff from another shirt, but you could use any contrasting fabric to make a simple bow or corsage for a cute and interesting detail. Another shirt remake project that started with this pattern as a basis can be found here.