Here is my finished Baby Surprise Jacket. Blocking (getting it damp, correcting the shape, and letting it dry) made a big difference in the shape of the sweater and the final step was sewing the shoulder/arm seams. I purchased some wooden buttons that I'll sew on too.
I knit this with size 7 needles and used yarn that was 75% acrylic and 25% wool. I wasn't sure what the finished size of the sweater would be, but was happy to see that M2 will be able to wear it on cool evenings this summer.