Great shots Peter, I'd say my order of preference is 1, 2, 3.
The first I really like the menacing tower, and you caught the moon too.
#2 I like this one, stark bones in the black of night
#3 While I like something, I think there is too much blue.. that or the water is just a little too rough... (I still wish I too it

but I think you could of done better).