Pattern Drafting Bodice (Attempt 1)

This week I've been working on my first attempt of pattern drafting. I have been following the steps and measuring out on paper a block for a bodice. I've chosen this as I intend on working on the top half of the body. The book says that it is a block for a size 12 but because I'm only drawing half of the front and back it looks a bit small. I've cut it all out and am going to make it in fabric to see how it fits and whether it works as a pattern.