Interesting, are there two suns ?
If anything I'd say that this was a little "over-cooked", try lowering the roughness and reflection on the water just a little. I really like the lower pale orange sun, you got that just right. The upper one seems a little too harsh (imho) but I guess you need that for the god rays,maybe a thin layer of cloud just in front of it or just lowering it's intensity a little.
Good work
Richard