This is such a cute sweater and easy peasy to crochet. I made this for the daughter of a friend. The directions are really a novel, but are made for two sizes a size 3 and 5. I also did not follow the instructions for the sleeves. In the pattern the sleeves are each different, but I didn't care for either one. So I just alternated a few double crochet rows with a row of *dc, ch 1, sk1*.
You can find the pattern on this page at Magic with Hook and Needles. Read all directions first, even though it is a book (learned that the hard way). Great for spring, have FUN!