I talked with a terraced-paddy-lover photographer and exchanged information; which "棚田tanada", terraced rice paddy is the best to take beautiful sunset photos, etc.
Every photographer has their own good viewing location to take best shots of "tanada" and knows a small path to reach there. But these are top secrets to others. So you need to make some effort to find your own best location.
My Spotlight & Color Spotlight images: http://kyu.aminus3.com/featured/