Yea, kind of like what Al said... Nose bevel, wing bevel, and wing profile. They can change a lot depending on how you sharpen. The wing profile ranges between flat/straight and a slight arc like the one you show in the picture. Almost all of my gouge wing profiles are slightly arced. I would guess that with a 40/40 grind, with a V shaped flute like Thompson, the wing tends to be more straight, and with a parabolic flute, it will be more arced. Probably the same with a swept back grind.
robo hippy