Zoya Sienna is a semi-sheer bright and true orange with golden flakes. Reminds me of both summer and even more so goldfish. This is one of those colors I just kept looking at in the light- beautiful! I know I don't have anything close to it in my collection. At 3 coats it is still kinda sheer. I didn't attempt a 4th but something tells me it wouldn't have made much of a difference. This is one of those colors I don't mind being a little sheer though, it doesn't effect the color payoff.