I hope you had a great holiday. Paros is such a beautiful island. I think that you have shot a very nice photo. Things to keep in mind though, when taking a shot like this, is to decide what in your eyes should be included in the frame. I know that the light in the bottom of the photo complements this shot, but in including it, you have allowed for a big black strip, to overpower the entire shot.
As far as your exposure of the little church is concerned; it's dead on!
I hope you have more like these from Greece, to share with us :-)