To my untutored eye it looks a nice piece. There is a dedicated nihonto site here,
http://www.militaria.co.za/nmb/forum/3-nihonto/ with very knowledgeable members and a wealth of information available.
I would add the caveat-warning though that they can be downright harsh and judgemental, especially to the beginner or entry level collector.
You also need to turn the tsuba round, the Kodzuka-ana (opening in the guard) goes to the inside when the sword is worn edge up, so that the more elaborate decoration faces forward when worn.