The shockwaves and explosions shouldn´t be fire like. There´s no oxygen in space, thus there wouldnt be any big ass explosions and fiery shockwaves. Small explosions are ok, because terran ships have oxygen inside that could fuel them. But big ones, like some we see, are a definitive no no.
Explosions could also be species colour coded. Terran ships have an oxygen based atmosphere, thus it makes an orange coloured blast. Shivan and vasudans have diferent atmospheres (if at all) and so the explosions would have a diferent colour, depending on wich gas their atmosphere is composed of.
Now, if i were to choose based on looks alone, i would definitely choose the blue one, or the oranje one. The red shockwave starts ok, but then the red colour feels out of place. Maybe it could be done so that it starts red, and then fades into orange and yellow...
