I love this! The composition is really neat. I liked timtam’s idea of making the right side all dark to eliminate distractions! I would probably do that with a graduated filter.
It looks a little grainy, so if you were back there shooting it again, I might suggest raising the ISO a little to reduce grain. (But this also might be an effect of taking the picture down to a lower resolution for uploading on here, I guess.) To reduce grain in editing, I might think about raising luminance a little bit. 🙂
If you wanted more burst effect on the sun, you can raise the F/stop a little.