Space Wave at the pole

I spend several hours on this work. I tried a lot of new things such as clouds on the planet, cloubs in front of the sky, reflection on the water... Moreover, I used the previous tutorial for the nebula, but this time I used a picture of a wave that I desaturated and blurred to create the nebula.

Ressources :

The whale :
[link]

The iceberg :
[link]