I notice that smile too, but only after I posted the image. The dynamic range is pretty good (although I tweaked a bit more detail out of the shadows on the right where the rain is running through) and detail is generally very good although you need to apply a lot of clarity etc to get at it. I'm less happy about the distortion on the lens though. It is good close up but on distant objects it is far from impressive and needs a fair bit of correction. The previous GRs were far better in that respect.