The S line leads the eye in on the second one and the reflections in it really make it interesting. I don't think its over sharpened but most hosting sites compress Jpegs even further making the images soft. Over sharpening the original compensates for this making the Jpeg that we see look pretty good. Apparently your supposed to over sharpen slightly for printing as well.
Nice shot Darren. I don't think it is over sharpened overall. I do see a tad of haloing at the top of the building on the left aginst thedark sky but I have to really look hard to see it. Love the reflections.