What I see here is a strikingly simple and incredibly beautiful photograph, masterful in every aspect I can think of.
A short analysis on the technical side. The composition is a perfect textbook example of "the golden 1/3-rd rule" - both the chairs and the horizon. It is however not boring at all (as textbook samples often are) - these proportions are well used to emphasize the simplicity of the cadre. The colors are saturated but in the same time very calm which creates the main feeling in the picture. The blue color scheme works together with the reflective ground to give the notion that there is nothing but the water and sky in the picture - a tranquil and wistful sensation. The thin orange line in the sky is the only hue that differs but it harmoniously blends with the blues. Finally, the soft gradient towards the edges completes the composition.
This is a flawless image and it doesn't really need any criticism. There is hardly anything I could suggest to improve it.