Wow Dave! this is a bit like a HD image its so sharp! lol if this is with zero sharpining then your Contax 21mm is a totaly 'awesome; lens indeed, the colours are really nice as well 'popping' off the screen very naturaly, shame the dredger? in the background is in the frame otherwise an impresive composition almost (if you like JCB's.
nice photo i like it!
Michael