How can I darken my makeup without going too dark and weird looking...?

i actually use dinair airbrush makeup and it is pretty cool because they let you email in you picture and then they tell you which of their shades to get..it makes it super easy. i have been using their makeup for a really long while and i am in love with it. it covers everything i need covered and makes my skin look flawless. it is also water based so it is not bad for my skin.