You’ve done, as usual, a great job of organizing your photograph. None of your photographs ever feel chaotic or disorganized. You simplify your shots with a clear mood, no distracting elements, color control a clear center point and often with a good depth of field. This photograph is no exception.
You also show your understanding not only in composition but also artistically. The use of reflection in the trees adds a heavier weight to them and the contrast in the sky and trees give the photograph a dramatic look.
However, in this photograph you’ve put everything in the center of the shot. This photograph uses a formal balance which wasn’t seen in your other shots. This formal balance look often creates images that lack drama. It also generally means that the image isn’t abiding by the rule of thirds (which isn’t always a bad thing, but it’s up for you to decide what your story is for this particular photograph).
Notice that all three of your trees are almost dead center of the photograph. Also notice how your horizon is almost dead center as well. I see that you have an interesting foreground (the grass) and in my opinion you should have pulled out the foreground more by placing your camera lower and using more of the bottom half of the photo and less of the sky. This would have pushed your horizon line higher and made your photograph abide by the rule of thirds.
Overall your photographs are very good. It’s just these small differences that will make your images go from good to great!