I
don't know that anyone still shoots the rapids in a canoe.
The rapids here began as a stock photo of a considerable
waterfall -- just the head of the falls is visible here.
The man began as a monk in a cowled robe -- I added the
paddle and adjusted the arms. The frame is a series of
strokes. The overall look is from a layer done with the
cutout filter and then selectively masked and opacity
reduced.