in my opinion it doesn't matter if it is correct or not. Does your lighting produce a great image or not. That should be the question, I guess.
This is an image of I guess the sunniest place on earth. The sun is at almost 90 deg. above the beds so it doesn't generate distinct shadows and therefor the light doesn't help you to get depth in your image.
I don't know what the purpose of the image is but maybe you could use a hdri with a lower standing sun so you get more mood and depth in your image :).