I know the wording says horizon, so perhaps you didn't want to show what was in the distance, but I think the top cropping is too tight. Nice curves though.
Interesting take on the challenge! I like this twist on the concept and I think it works very well. However, you seem to have over sharpened by quite a lot and it shows in the overprocessed highlights throughout the image as well as the unusually sharp edges of the tree leaves. Experiment with varying heights (vantage points) to see what works best vs only taking at standing eye level.
'to the place i.......................'
arrrrggggggggghhhhhhhhhhh, that song is now stuck in my head.
nice shot thought
'................ mountain mama'
1 for the song
19 for the shot
averages as ....................
a 9