I'm sure it's a lovely garden, Sean. You just have too much of it .
It's what is called TooBusy in photographic terms.
It can still be improved by cropping in from the right border, to a point where there's just 1/3rd left of that clump of leaves hanging through the top border.
And just to the left of those leaves is a flower that is cut off by the top border. Clone off a section of the top of it, and replace it with a cloned copy of the flower just to the left of it.
Now, that whole clump of flowers will be within the top border, and will not tend to pull the viewers eyes out of the picture. It will also lessn the impact of all the stalks along the left border being decapitate
Your format will now be square, and though still fairly dense, it's well balanced and pleasant to view.
If you have any questions, or would like a copy of the rework, just contact me.