Luminance boost only, on peony colours (magenta + some purple). The drawback is however what you observed; remove the luminance boost and the bokeh is nice but I the miss the glow. The evening light was low and I exposed accordingly. There was some downward tilt to "fit" the top of the flower, but very approximate (grab shot, handheld). The main gain of the PC-E here is the close-up ability.
I have just tried to soften the edges using radial filters and reducing clarity, which improves the resut but does not fully work. Luminance boost was just too heavy I guess.