Yesssss! Two of my favorite things together :D
Huge fan of VR at the moment - I obviously need to have a go at making my own Aurelion Sol in Tiltbrush too! I can't quite tell past the blue smoke, but did you use the space background, or the nighttime one? (I love the sense of vertigo the space background gives.)
My last creation was a spaceship/pod like setup, with window out to the night sky, and a control panel in front of me. Even though I drew it, it was very jarring to attempt to walk through it to draw the hyperspace streaks outside the window! :D My fave thing, though, is sitting on the ground, drawing grasses, flowers, and trees all around me. Very relaxing.