The dress is suitable for a small stuffed toy or a doll. My toys are about 13cm (ears not included). You can modify the pattern a bit to change the size.

Materials & Tools
-Yarnart Jeans 50g/160m (174yds) 2 colors
-1.60mm hook)
-scissors
-sewing needle
-button

If you want to crochet a similar bunny, the pattern will be available on Ravelry (and Etsy) as well.
Happy crocheting!