In Photoshop:
* NeatImage on green areas only
* Multiply layer on just the eyes, 30% opacity
* Hue sat layer on just the eyes, +10 saturation of yellows
* Soft light layer on whole image, 20% opacity
* Smart Sharpen, 200%, 0.4 px, Lens blur mode. Did this in its own layer.
* Set sharpen layer to luminosity mode, 80% opacity.
* Created a layer mask on the sharpen layer, and used the brush to selectively tone down the sharpening around the head.
Looking at it now, I'm still seeing some sharpening halos. If this were my entry, I'd go at the sharpening layer with the black brush again.