Forearms again, but this time we see the bottom of his left forearm and hand. Use your own fist for quick reference, even though these fingers are cartoony. Note how the spikes are sharper and more triangular on the outside edge of the other forearm. Think of these as ice cream cones or something like that. When viewed from the side, you get a triangle. When you point the tip more toward the camera (you, the viewer), the base becomes rounded and the point appears shorter and wider. When the tip is really pointing at you, you essentially draw a circle first... then draw a dot for the point... and draw some shiny lines or texture running from that dot to the edge of the circle. In context with the other spikes, it makes sense. I should really do a tutorial on spikes.