Hey There friend, I like the work you have so far. I would like to give you some suggestions to help improve the scene. The idea of making a sci-fi fantasy illustration using UE4 gets me excited so I want to see this become well executed.
I don’t know if the composition of the latest shot is what you are intending, but I think placements of the subjects could be better arranged. It feels unbalanced right now. the creatures on the left are much closer to the edge of the screen which I think it fine. The ship however I feel the edge could be much closer to the right, about the same distance as the creatures are near the left edge. The moon/planet doesn’t balance well being right ontop of the ship in my opinion. It’s putting too much weight near the center of the screen. central focal points on an asymmetrical composition almost never works. The last thing I want to mention, I assume it’s already on your to do list, but the creatures need effects for their spotlights. I took me a while to figure our the spotlight on the ship was coming from the creatures. I really want to see more from this piece because it has so much potential. please keep it up! 
EDIT: I forgot to mention the broken tangent lines on the edge of the pyramid. The end of the plant structure overlapping right on top of the side of the pyramid results in a broken tangent, either make that plant bigger or smaller so the edge doesn’t meet right on top of the side of the pyramid.