Love the color palette, and it resembles an ice planet(in my mind) Which is awesome!
Obviously I understand this is a work in progress, but it could use some clarification when it comes to the object in the center. Is that a ship? A giant weird shape rock? A tower/building? Havent decided? 
One thing that I’m crazy about is getting something in the foreground. It could help push the… thing… back and help in terms of scale. For instance what if you had of some sort snow crawler of a sort like you would see at a ski hill?

I found this it could be a cool reference

In this piece above it has “Thor” on a sort of hill in the foreground really showing the monumentality of the environment giving you a clear or clearer sense of depth within the image.
But overall it looks good, the objects shape is very unique and creates alot of interest within the scene. I hope this helped a bit, if at all. I look forward to seeing further progress with this piece!
-Ryan