Oh my, those bulrushes are amazing! And your focal blooms and color are great.
I still think you need to up the ante on the leafy filler side. Anything with smaller leaves and interesting shape. We used poplar leaves for my bro's wedding when the boxwood didn't show up. Maybe there's a shrub or two around your place that you can savage I mean prune..
Not that it will change the market, sometimes it just isn't there, but it will give you another little edge... when sales are marginal, it's the extra mile that counts.