I like these three colors, and I think black, red, white is simple and beautiful. All of the above four dresses are my taste, the style of each is perfect. Maybe the two black dress will be more formal and elegant, which more be suitable for older lady. While the red and white one may looks younger. That's to say, deep color may fit the formal occasions and the light color may fit younger lady and relaxing surroundings.
All in all, that's just some of my opinions about them, more discussions are looking forward to be heard from you. Any tips or discussions will be accepted here, thanks for your discussion and comments.