@Asyas_illos Interesting concept. Isn't it fun to get ideas from dreams?
Can't it be both night sky and aquatic? I would imagine the depths of the ocean may resemble a stary night sky (especially with the bioluminescent creatures).
Or what if the sky wasn't made of air, but instead water?
Or if you look at it from a fish's perspective what is their version of the night sky? The sea has several strata, each with different kinds of environments.
Anyways... I find the purple agreeable, but not the warm tones. Space and sea are both usually associated with cool and deep colors. But maybe you want to break the mold? If so, then please do. The contrast of the blue-green variations is a good direction to follow. Maybe the stars don't have to be golden yellow. Sometimes stars are actually planets and satellites which can be green, red, etc.