Forming the link section to the 'knuckle' block. In the 1st image you can just see the start of the banked curve section and in the last image you can also see that big wave hollow cut in the knuckle as it moves round into the sweep of the banked curve.
Use of the convex spokeshave to clean up the carving after the arbortec. Low angle spoke shaves have been used extensively in this project to bring out the radius cuts on the end grain of the seating boards. This link section features a streched low 'carapace' cut styling to give a dynamic sense of movement within the line weights.