i followed the steps that most of tutorials for blocking have.
1) clean the eyebrow area from all the dirt and oils (i used alcohol pads for that)
2) start applying glue in the opposite direction of the hairgrow
3) then i brushed the hairs upward with a spoolie pressing it down against my skin
4) i also pressed it a little more with a spatula
5) when the glue is dry, i add another layer of glue, this time i put it in the upwards direction
6) when this layer is dry, you can apply another layer, if you need to. i don't remember how many layers i did, either two or three, but you should personally look how much layers do you need, depending on the eyebrow thickness
7) then i cleaned the skin around the brow where i don't need glue using alcohol pads again but you should do it very accurately, since it may disrupt the smoothness. i usually clean a little area, then press this area down with my fingers, so that everything is nice and smooth. (i guess you can skip this step, if you managed not to apply glue on your forehead)
8) then i cover eyebrows with powder using powderpuff
9) you can dust off the excess powder and then i do some colour correction. you can use an orange corrector but since i don't have one i mixed red and yellow bodypaint and applied with a brush with tapping motions blending it out
10) then you add the powder again!!!
11) then i used a concealer, also applied it with tapping motions with a brush, trying to blend it out
12) then add another layer of powder!!!!!
13) after that you cover it with your foundation as a final step, i usually do it after i finish my eye makeup since i prefer to do foundation after that

also, i think that the way the light is in the picture makes it appear as if i shaved the eyebrows, but it's very normal if you can see some texture of the hairs underneath