Changing up and Old Dress

I got this dress about 2 years ago and LOVED IT but after a while, I was starting to dislike the design. I realized that it wasn't very flattering to my body. Yesterday, I was thinking about what I was going to wear on New Year's Eve. I didn't feel like buying a new dress so I chose to alter this one. (Still needs a little work).
Original Design:

http://store.americanapparel.net/rsans309s.html?cid=2

 

 

My Design: