Atop the Bridge

this is really awesome! I'd say add more detail into the river. Put some ripples and or some intense lighting... not too much, just a few streaks here and there, can easily be done with an eraser. Also don't be afraid to add more darker strokes or shades in her shadow and on her clothing. The best example is how you treated the bottom left hand of the drawing, the cobblestone area. Also if you added more darker shades into the buildings in the background, like near some of the corners, it would help it a bit. Other than that, freakin fantastic composition man, I love your other stuff too.