I had this idea, but I didn't think I'd be able to pull it off, well done! the colours on the surface of the bubble are great. If you had been able to get your lighting so that one side is a little more lit, it might have looked like a rising sun on the bubble planet..but that's just an idea!
Now I want to see #2. This image suggests an entire planet to me, with lots of inviting colors. I may be taking a leap, but I'm giving this a 9 for mood and great communication of theme. Nice composition.
This picture looks so simple, but I'm sure it was a miracle of nature to capture. hehehe, I'm interested to know how you set this up. It makes me focus on the color, so I think its a great submission for this challenge.
I like this idea. The colors are very important to this photo and I think it meets the challenge very effectively. I like the simplicity of the picture as well as the use of symmetry. I gave it a 5.