Hi @Sam Fisher (WatercolourSam), Becky says Lemon Yellow is away from red, so it is cooler and greener. .

@fareeha nazeer Its indeed Phthalo Blue and Phthalo green to get Turquoise. The most ones you can buy there is also added Titanium white in it so it gets opaque! Avoid that one. It is only nice to use for Jackets and green traffic lights where you lost the light! Maimeri has one that is called Cobalt Turquoise. its a single pigment made from PB28. tube nr 412

The above is Turquoise, the one below Phtalo (ftalo) Blue and Phtalo green. It is a much transparanter than Turquoise. But I think when I put white in the mix I came much closer.