For the colors I created a new layer, changed the blending mode to Soft Light, and then painted in the blue of his suit, the yellow of the flowers, and white on her dress. Each on its own layer. Then I adjusted the opacity of each layer so it looked right. I used Photoshop CC's new RAW filter to use an adjustment brush on the background. I lowered opacity, clarity, and sharpness to sort of mute it out a bit. Then I duplicated the base layer, applied a Gaussian blur, and used a mask to soften the pixelation on their faces a bit. I added just a touched of sharpening and touched up their eyes a bit.
It still needs work, but it'll have to be from someone who's better at this than I am.
I would think about cropping it a bit to take out the candlesticks and the mannequin looking guy in the background.
Something like this maybe.
|IMAGE IS A REDIRECT OR MISSING!|
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