efinitley start with your eyeshadow..make sure you have a base to keep them on as long as possible and after all of your eyeshadow is complete you can move on to eye liner. the reason shadow goes first is so it doesn't make your liner look blurry instead of stark (if that's the type of liner your going for). then after liner and shadow move on to mascara. mascara comes last because if your lashes were done they'd be in the way of putting on shadow/liner and it'd mess up your whole look!! so basically, stick with shadow then liner then mascara. hope this helps!!