Hi Sahunn, I am here to give my honest opinion on this map. (I am just giving my opinion, this will not affect the final result)
I am going to give this map a -1, which means I think it will get rejected. And here is why.
1. The theme and originality: The theme is original, as there are no Herobrine maps now. But as Pro said, there is a map called SketetalSteve which just looks like this map but with Steve eyes. Also this map is also Minecraft related, and if I'm not mistaken, Minecraft themed builds aren't accepted anymore.
2. The build: The build is very accurate to the real Herobrine. It's good and basic, but still looks a lot like Herobrine himself. But sadly with the problem(s) I mentioned above, this might be a little too similar with SkeletalSteve and is also Minecraft related.
3. The parkour: The parkour is okay. It is pretty varied and was fun to play, but sadly some of it was quite floaty. But the length and the jump difficulty definitely fits the level of the map.
Once again, this is just my opinion on the map, not the official judging on the map.
And also, I hope that this post does not make you lose confidence in yourself, and I think that you should continue making more maps!
Good luck, Sahunn!