Bridge

One of my first attempts at using HDR. Composed of 7 shots at 1 stop

increments.

Gray exactly, mostly, but looks great!

PDE

I don't claim to be an expert on HDR, but I would question the need for 7 shots in a scene like this.  The sky in the center background is overexposed -- the clouds aren't defined very well.  The entire scene is relatively uniform without much contrast -- the light is relatively flat.  For a simple scene like this (although I'm not sure where the sun is, so it may have a greater range of light than I'm suspecting), I think you'd do better with a single shot that has the brightest highlight correctly exposed, a single shot that has the deepest shadow correctly exposed, and then a single shot for everything in the middle.  Adjusting the HDR parameters around those three shots might yield more satisfying results, especially in terms of more natural lighting..