Timed exposure at the corner of Swanston and Collin st., Melbourne

Digitally speaking, for the past 6 months I have been diddling around
PS and over the entire net, experimenting with various forms of BW conversion.
Among those, greyscale, desaturation, LAB mode, channel mixer and one, which
less seem to talk about, gradient map (though I must confess, even though most of
my BW's go through gradient map, I have no idea how it actually works. None the less
it gives me a good starting point to work from imo.
More on that next time. This photograph is one of my few first attempts at a timed exposure.