The horizon running downhill to the right and the strange lack of luminosity in what should, by rights, be a hauntingly luminous scene detract from this very well seen and basically very beautiful image. 6 from me.
This isn't beautiful, it's gorgeous, so you didn't really meet the challenge. Despite that obvious mistake, you should finish right around the top. ;-P
Really pretty. The simplicity of composition, the reflections, the silhouettes, really great. I predict top 10. But it's hard to say how others will vote on this one, because I almost voted low, but after studying it, I'm voting much higher.
The thing I'd change is I wish the mountains in the distance were in sharper focus. My first impulse was that the image was out of focus. The mountains looked out of focus and they caught my eye first and held it. Only once I intentionally focused on the swans and the close part of the lake did it become really beautiful.
Actually, I might prefer a much closer composition, including only the swans, their wake, and the bottom half of the image or so, excluding the distant parts.