The latest/upcoming trans mega suggested using more comms, so im posting here my rather simple approach to (liquid) eyeliner. Theres tons of ways to do eyeliner, this is just how i do it. For what its worth, i have partially (mostly) hooded eyelids, and a somewhat prominent browbone. My eyebrows get sparse at the outside and i try to keep them trimmed a bit, not like waxed thinbrows but more boybrow style with some trimming to keep them kempt.
First clean the skin of the eyelid and around the eye, and let dry fully. Get some micellar water and your favourite liner. I like liquids with a brush applicator.
Second, accept that the wings will be siblings or even cousins, but they will not be twins.
Thirdly, accept that it will probably look bad the first times you do it. Youll have to wipe it off and start over. I stopped doing eyeliner for months and months and had to re-teach myself all of this recently which sucked but was worth it. I spent a lot of time staring at the mirror and wiping everything off.
A note on technique: sometimes when i need to be suuuuper precise, i anchor my drawing elbow to the mirror, or even my forehead as well. This stabilizes everything and makes me less likely to be shakey by keeping the drawing implement and/or the drawing surface steady. Also its way easier to add more eyeliner than remove it! Removal is difficult and often (for me) results in removing more than i wanted.
Ok now figure out how big you want the wings to be, and mark two horizontal lines around the terminus/outer point of the wings for each eye. Just a little dash. These lines are super important, they will guide how you create the wing and how even it ends up. Put them on and then take time, examine them, wipe clean and redraw, do this until they are even and mirrored.
Next, use the tippy tip tip of the applicator to draw a straight line from the outside point of the line down to your lower lash line, almost as an extension of your lower lash line. Some people use tape for this part, kind of like a painter, but i find it more difficult to do that.
Now extend the original horizontal line from the inside end of the original starter/guide line straight onto your lid until it meets/intersects your upper lashes.
Ok now fill it in. Just be careful not to draw outside the lines.
You should have the almost final wing. At least, its general, nearfinal shape has been formed. This is the time to adjust things. Get some TP or a cotton wipe, put some micellar water on it, and fold it to form a sharp/hard edge. You can use this to straighten lines and adjust things. Try to take off too little at a time, because of the liquid it will spread a little and if you aim to take off exactly what you want removed, youll take off too much. Also note that shapes can be misleading. Say one wing is straight and the other looks like it curves up a bit. Perhaps this is because the top line curves up and its center needs to be filled in, or perhaps this is because the tip of the wing has an extra little upwards smudge at the end that needs to be removed, or perhaps (this is the one that always messes me up) the bottomside of the wing bulges out a little and needs to be trimmed. Take the time to investigate how the wings are similar and how they are different and adjust based on that.
Next, draw on your eyeliner as youd like it on the lid itself. This depends on the look, but generally i imagine a vertical line at the inside of my iris going straight up to my eyelid, and draw from that intersection point outward towards the wing, starting very thin with the tippytiptip of the applicator, and pressing more and more (or changing how much of the applicator touches the lid) as i move outwards. If it gets too big grab your TP/cotton and slowly remove it, being sure to pull upwards so you dont mess up other parts of the eyeliner.
Ok if youve done all this you have the final eyeliner on the lid, and an almost complete wing, with a somewhat sharp angle where they meet. The next step is to smooth this angle out. Do this slowly, baby steps. Draw from the wing to the liner on the lid or vice versa, but make sure you start within or on the borderline of the wing/lidliner. The goal is to smooth the angle, not change the wing.
Ok! With the angle smoothed you should have a winged eyeliner look! Perhaps it doesnt look good, perhaps it looks amazing. If it doesnt look good, consider why. I know when i was relearning i drew my starter lines too low, and it didnt look good on my face. No solution but to wipe everything clean and redraw the lines higher, or at a slight angle. Sometimes my eyeliner looks bad because i didnt make them even enough. Or because i messed it up and its just kinda messy (liquid liners craves preciseness).
Anyway, i hope that was helpful, or at least enjoyable to read.
send a 
to the sun to provoke a solar flare big enough to wipe out all electronics (Joking, that would be devastating and many many many people would die).
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::: spoiler superfluous comment
It looks like you're riding sputnik into space and its cute, say hi to anyone up there for us ^^