have you considered doing the foreground in a complimentary color to make it pop out more? maybe a neonish yellow or blue?
or you can just tone down your background by about half of what it is now.
if your question one of subjective opinion, or how to use the tools to get what you want?
right now, with it all green it just looks monochrome,which if thats what you want, its fine. but maybe its not what you want.