Paul, I see your point, but I have to agree with Enzo. Perhaps a shorter DOF might help distinguish the foreground from the background if you want to keep the colour composition.
Thanks Enzo, I appreciate your comment. I see your point, although, this makes the image special to me. At a first glance you not focussing directly on the subject, it's more a composition of colors. After looking longer you discover the 'hidden' subject.
I like the shape of these plants. Seems the main subject needs more separation from the background, since it has similar color and texture (maybe some lighting on either the main subject or the background could give a better separation).