Not actually that impressed by most of those photos (a lot are bad crops/comps or over processing), but there are some good ones in there (red bridge , traffic lights).

I have an 8mm Fish and a 10-20mm Sigma - also a 17-85mm, but barely use it now as i have a 50mm and a 70-200... the 20-50 range is a bit non-starter with me - not really portrait, not really landscape kinda range... and 50-70mm gap is barely a problem...

"In every colour, there's the light.
In every stone sleeps a crystal.
Remember the Shaman, when he used to say:
Man is the dream of the Dolphin"

Rich Meadows Photography