This was one of my very first sewing projects. Its a copy a gapkids design and was done by the Crafterhours blog. You can find the tutorial here. For my dress, I used about 1 yard of red and white flowers fabric from Keepsake Calico. I double pleated the bottom and only shirred 3/4 way at the back instead of the entire back like the tutorial states. Its a fun dress and my daughter loves it!
For the box pleats, I watched this video. The tutorial from Crafterhours also did a good job at explaining but as a beginner sometimes it helps to look at the instructions instead of reading.