It was hard choosing shades based on the online swatches I looked up, I recommend swatching these in person if you can find them. Shades 4 and 5 are very similar: both mid-tone browns. 5 leans more orange, though they are both still very warm and of a similar depth. I thought together they would make a nice everyday brown smokey eye. On the hand they look different, though I was hoping 4 would be darker and more neutral because once on the eye & blended they look the same. I don't think you need both. 24 is a cherry red, swatches I looked at looked like it would have more brown so I'm disappointed with this shade. The formula is nice for eyes and lips but too difficult to sheer out for on the cheeks. Otherwise, the formula is great - pigmented and budge proof once they set. They need oil to remove, micellar water isn't enough, so these will be great for lids prone to creasing and humid weather.