Hint 1
It is hard to get past the right flower even with it lowered because of the corner, but what makes turning corners an issue in the first place? Is there something you could do to make corners a nonissue?
Hint 2
The light usually stops you from turning corners. In other levels, you sometimes balance the light on a flower or platform to get around this restriction, though the layout of the buttons prevents that here. What else could you do to get your light out of the way?
Hint 3
If you are having trouble with the setup, consider the different ways you could use the two moths. How could a flying moth help?