Great job making the ripped up aluminum look right.
If you're feeling a bit bolder, you could make some more alpha cuts for the big holes in the tail, rear fuselage and outer wing (assuming there's underlying structure you want to show off).
Were the control surfaces of the F8F fabric or aluminum? In the latter case, the cutouts on the ailerons, rudder and elevators would look better if they were edged with a "chewed up aluminum" texture.