When I had Essence Queen Of My Cloud Castle on my nails for the first time it looked little bit familiar. Later I realized that it reminds me on China Glaze Flirty Tankini, since I wasn't at home I couldn't compare it right away but when I did polish in the bottle looked almost the same. Both are warm corals with shimmer.
I decided to apply both polishes on nail wheel and that was when I saw that they are not really dupes. They are really close but not 100 % the same. CG Flirty Tankini leans on pink while Queen Of My Cloud Castle leans on orange. Flirty Tankini also has more pink shimmer then Queen Of My Cloud Castle and the finish of both polishes is different as you can see on the pictures bellow. Between the two I prefer Flirty Tankini only because I always choose pink over orange but these two nail polishes are so close that there is almost no difference. The difference is easy to see in the sun but if you look at the in the artificial light the difference is negligible.
China Glaze Flirty Tankini - Essence Queen Of My Cloud Castle