Hello Misha,
I love it. But it has water in it and that, for me anyway, is almost all it takes:) I was first caught by the color/white balance. May I ask how you obtained such a good color balance? Next is the exposure, I love the softened water from the long exposure, but it is also nice and bright. You have a good eye for spotting really good even lighting. Did you use any filters to get you up to 5 seconds and or even out the scene? Overall I love the shot.
I do agree with the others on the composition, but that is my weak point and I will be hard pressed to comment:) In fact that is one reason I am here, I will be soliciting compositional comments. BUT:) If I were there, I would have lowered the camera concentrating on the water more and moved to my left. I would have tried to place the two portions of the creek where the water enters the scene, in the two upper 1/3 points. Now if there had been something interesting on land in that upper left corner then this would work real well. Say a trail coming down to the creek or a deer:) I do find that piece of land in the upper left cool though and maybe I would have shot a Portrait orientation shot with that and the creek from a similar view point.