Turquoise Studio has recently celebrated its first birthday! Happy happy birthday to you, dear Turquoise Studio – without you, our lives would be Sigma-less and empty! To celebrate its first birthday, Turquoise Studio has kindly offered up a Sigma Smoke Screen palette to give away to one lucky All Dolled Up reader – just look at how beautiful it is: Ooh yes, that’ll do nicely, thank you very much! We can attest to the fact that Sigma eyeshadows are fantastic quality – we used the ‘Warm Neutrals’ palette in a tutorial earlier in the year and were both blown away by the…