Love it - that is incredibly chic. As for a tutorial, you can do whatever strikes your fancy. Some people just write steps down, some people recreate another one and take pics as they go, so it becomes both a picture and written tutorial. =)
Although the dress is adorable, the outfit is made fabulous by the top and the boots. You have a great eye for color combinations. I love the way you can rock it winter-style, as seen here, or I bet it'll translate to summer quite nicely with some wedges and a light wrap. Charming!