First of all, sorry for not answering for so long. I was thinking of creating a mini-tutorial about postpro, but then realized, that I haven't enough time for that.
Unfortunately, raw render was deleted shortly after the postpro was made, so I cannot share it.
And about postproduction process: I made it in GIMP, because it much faster and intuitive for me than nodes. First, duplicate the initial layer three times. The first copy set to screen mode, it'll make the image brighter; the second one set to soft light mode - it'll give more contrast. The third copy is for glow. Make it monochrome, then adjust the contrast high enough, almost for pure black and white colors. Then I use a plugin called something like DOF Blur (I have localized version of GIMP so I cannot be sure). It's better than Gaussian blur - if you'll play with it, you'll understand what I mean. Then I almost always tinting this blurred layer for something between cyan and blue. Additionally you can apply a Chromatic aberration with maximal settings to it - it will give interesting color distribution of a bloom. Then set this layer to screen, in addition you can make an alpha mask.
Vignetting is far easier. Make new layer, lit it with black, then apply an alpha mask with radial gradient from center. Adjust brightness and contrast and you will have a vignette.