Early design for my comic book character! :o

[Supafly345]

Someone who draws them.
If you are going for realism the best thing you can do is to practice drawing a model. That is what realism is mostly, life-accurate drawings. You can't expect to manifest real-to-life drawings in your head and then produce them on paper from day one. That would be like someone who tried to cook their very first cake without a recipe.

Observe ripped holes in clothing in order to emulate it for the holes in the jacket. Think "how would a hole in cloth look if a wing had just been thrust through it?" And use similar thinking for other aspects as well (wings, hair, clothing, ect). Find a picture of a wing then draw it, find a picture of the back of a man's head and draw it. If I go into specifit things then it will be my visualisations as an artist, and not yours. So develop what you notice in reality, then practice it.