Very nice set. I really enjoyed all of them. Seems like a very lovely place. How long was your vacation?
As far as C&C, the first airplane shot is a real stellar shot. That'd be my #1 pick but all of them have their own great merits. Some seem are hazy which hurts the shots a bit but there's really nothing that can be done about those.
There was a great opportunity in the 4th shot with the colorful house. I really wish you could have gotten closer and placed the subject in a much more flattering composition.
As far as the ND filter ones, You definitely got the technique down with silky water, but the one thing I will warn about is the havoc this wreaks with WB. Almost all, except for B&W filters I have used have that redish hint and it is difficult to correct in PP many times.
Sled dog shot is really nice. Gives you a good sense of experiencing the environment.
all in all, i think you did an excellent job.