Great idea & you executed it very well. It would have been nice to see different background textures/variations in luminance, though, to help make the colors in the bubble stand out even more. Good luck!
That's good. Good sharp focus, fairly interesting reflections and lovely colours. I think I would have liked to see a more interesting background though. Good luck
Simple, fun, nice. I like the creative path you took here for this challenge. Almost wish there was just a bit more for the bg - almost too simple in a way. Good luck in the challenge.