I nag about this every year before New Year's Eve, but you who have followed me for a long time may also need to be reminded a bit;)
When you do party make-up, especially those with glitter, it easily ends up a lot under the eyes, which destroys the basic make-up and can make the whole thing look dirty.
Either you do the eye make-up first and the basic make-up last, it works well with most foundations without ruining your fine tones. I personally do not like this, because I want to see the whole of the result while I make up my eyes to see if I want more / less of something. For me, it's about feeling good even when you put on make-up!
The second thing you can do is to keep a piece of paper under your eyes while applying flying shadows, but it can be a bit awkward and in addition, makeup can come under at least if you are not careful all the time.
So, my best tip is eye shadow primer (always important) and transparent loose powder!
Applying a primer to the eyelids means that the eye shadows adhere better, and then there is also less risk of them flying around / falling down as everything adheres directly. You can also turn off the brush a little lightly against the hand after you have dipped it in the eye shadow, then excess powder falls off and you get less under the eyes.
The loose powder protects the basic make-up if you still get eye shadow under the eyes, with glitter it is almost impossible not to get it. When you are done, you can then easily brush off the powder with a fluffy brush, and then all the eye shadow fall follows and what remains is a flawless foundation :)
When I do glittery make-up, I usually apply the powder on a larger area than just under the eyes, but also the nose, upper lip and whole cheeks. Glitter has a tendency to fly / spread more than ordinary eye shadow.