I played your level few hours ago now :)
Level looked pretty good, lots of stuff here and there, but you could add some lights, because it was pretty dark and I didn't see a much.
It wasn't very challenging, just collect bubbles before time runs out. You could add some obstacles going up or down or both, why not sideways?
I wish there would happen little more, otherwise good level and gave it :star::star::star::star: :)
F4F: Check out my level
Lighthouse when you have the time and give me some feedback, thanks!