>>32709429>Black, white, and yellow can create a glamorous, high-contrast look>Blue and yellow are surprisingly flexible; they work with modern or country stylesYou fail to notice how black and blue are distinctly separate and not together in either suggestion, that's because too many colors cause fights for attention, which is exactly what's happening in the clusterfuck that is rosa's wardrobe.
What's next? Brown, green, red and white? If you're going to throw so many different contrasting colors, you have to have buffers - transition colors. the problem with black in yellow particularly in her case is they're bunched together in the instinctive warning pattern, then it abruptly goes to white, blue and a bit too much pink. Neither of your 3-second google search grasps this, there's colors here not accounted for in their advice.
the color palate planned was without a doubt CMYK, the execution was poor. All these colors could have worked, they just put them in the wrong places that it just becomes distracting.
3 seconds of google is not a substitute for actual knowledge in color theory.