Now I have exaggerated this make-up a little, so that you just understand the principles.
But I was now going to show details that you can think of to make your eyes look bigger!
The basic rule I usually think of is - add light to enlarge, and highlight what you have enlarged by highlighting with dark.

Enlarge eyelid with light eye shadow.
The globe line is right in the space where the brow bone ends and the eye itself begins. You find your globe line by looking straight ahead, and see where there will be a "fold".
Also place the shadow on the crease line, to make the eyelid look bigger.
A shimmery shade enlarges more than a matte, while a matte shade gives a more natural result and is better if you are a little wrinkled / have droopy eyes.

Mark a "new" globe line but a dark shadow.
You can cheat a lot with your globe line, make it more rounded and / or paint it higher than it is.

Mark the outer part of the eye with dark shadow.
If you mark in the outer edge of the eye, the inner part of the eye gets the impression of looking bigger.

Enlarge the eye with white eyeliner along the waterline.
For maximum effect, you can also lay down a bit on the lash line.

Mark the white eyeliner by placing a black eyeliner underneath!
Here you can also take the opportunity to make a stronger marking of the outer edge of the eye, then place the eyeliner also at the end of the upper lash line.

Of course, long eyelashes give the eye a more open impression!
You can also use false eyelashes, along the entire lash line or just at the outer edge.

Then you can play with these shapes and create this look, for example!
Hope you understood everything!