The art of cosmography - WIP (Patreon)

one of the WIPs I am taking, I will again merge them and create animated step by step of them :)
It took me a while to get to this point but I am really positive about this artwork, I hope to gain a nice realistic effect here. Yet I still need to think about the composition, it bothers me now, yet I am not sure how to change it to be better. Maybe simply enlarging the art to the sides will help