critisism please........

Love the pic, the real question is what your friend would want.  Cutting the sun out may improve it but maybe that's the part they really like and cutting it would degrade the picture in their opinion.  Not sure if there's a way to enhance the rays of light, they look very cool.  Maybe increase the vibrance a bit but outside that if I were you I wouldn't be ashamed to frame it and hang it in my livingroom.

Just my $0.02