This is gonna be the next drawing. It's basically Celestia taking a shower. I didn't put some water effects, but the shower comes from the top side of the drawing.
The sketch was made based on a little sketch I've made that didn't work and I wanted to replicate it.

I'll add some clouds and trees and I've been preparing the layers for the light and the shadows.

What I need to do right now is to refine the light and the occlusion, I'll add the shadows, blushed faces and I'll add a crystal wall. She's taking a shower that's next to a crystal wall, so that's the reason why I added the trees and the clouds.
I'm gonna clear Celestia's makeup because she looks weird with these closed eyes. I'm just gonna let the purple lips and that's it. If I have more time, I'll add a mountain in the background painted in blue to clarify that it's pretty far away.
I hope you like it and thanks for your support!
Love,
RT