The colors don't say "lush" to me. It's also kind of dark, and not very sharp. I guess the flowers are roundish, but don't really convey roundness very well.
This picture seems a bit too underexposed. It might be nice to pic one of the flowers as a main subject, there doesn't seem to be a focal point in this shot.
Was it cloudy when you took this? The colours are a little dull due to a lack of lighting. One thing that may help is a flashlight. You can get some interesting effects by spotlighting a particular area of the image.