I seems I can't find the original....
The picture was in color, so I have desaturated the area around the bike. I have also, as it looks, probably done some filtering on a layer and used blend mode(s) on the layer above.
Worth trying; Make a duplicate of the layer, apply some filter on the bottom layer (gaussian blur is often used used) and then try some blend modes on the top layer.
Sometimes it works, sometimes it doesn't [bustagut]
Looking at the picture now, on a better monitor, I notice that I have posted an overcompressed version of the picture.
It has a bit to much contrast in this version.
M

rten