Dior Camel and Ebony are compared below to Dior City of Gold, Dior Sienna, Chanel Khaki Rose, Chanel Particuliere, Dior Underground, Dolce & Gabbana Chocolate and MAC Dim the Lights.
To see how Camel compares to neutral nudes, like Dior Nude Chic and Dolce & Gabbana Nude, scroll down two posts (linked here).
I found Dior Camel truly unique. There wasn't a shade I owned similar to it at all. Granted I don't typically gravitate towards yellow-based shades unless it's a gold shimmer. Dior Ebony wasn't exactly unique as I found it very similar to Underground. The two are practically identical except when you scroll down to the bottom photo, you might be able to see that Underground has a slightly purplish base while Ebony is more neutral black/brown. In real life you can only see the difference if you look very closely. In the photos I doubt you will be able to tell the two apart unless you tilt your head, squint and try to look for the difference.
I hope these comparisons help. I'm not sure I would classify these new Dior shades as must-haves as they are fairly neutral and not exactly knock out colors. Still they provide a polished subtle elegant look to the fingers which I really like. Quint/quad comparisons to come soon. I didn't get good swatch comparisons from this weekend so I will have to redo them.