Perhaps if this were a stand-alone art piece (which is what we see currently), I would agree with you Mistajaye, but in terms of game development, you have to think a little differently. There are certain elements you want to appeal to the viewer, and others not as much, they could potentially distract them from what they are meant to be focusing on, and compete for it's attention. Note that making something less appealing doesn't have to mean making it look less pretty. There are certain techniques used and shown here to create contrast and put the focus on what it was meant to be on. I as well agree with the above posts concerning the visibility of the heads in the cliff.
And to say some people's crits, especially if they weren't even for you in the first place, is in my opinion a bit rude and disrespectful.. No one is making them take their time and share their opinions and knowledge to try and help.
And no one is obligated to write a 5-paragraph easy explaining everything they could possibly see and think of after analyzing the picture for 2 hours, either. People do it because they want to help. I won't drag that on any further though, although I would have more to say.