Yair
Interesting little plane.
I got to see it earlier this year at the US Naval aviation museum in Pensacola Florida ( different color scheme ). There is also an example on the aircraft carrier Midway in New York city.
Regarding the model, my only comment is to ditch the petal nose cone and convert it to rounded cones. Or just make a solid nose, shape it, paint it black. Should improve the look. My opinion.
Isaac