Windblown Grasses

When I took the dog over to the beach this afternoon the wind was blowing very strongly and on the beach the sand was blowing along. I have tried to captured this before and failed quite miserably. So I turned my attention to the grasses in the dunes which also blowing quite wildly in the wind.  However a simple change of shutter speed does not quite capture it so I have overlaid a second image of grasses with some motion blur.