I’m not much of an expert, so you can say I’m still learning too! 

Beards can be tricky sometimes because they can grow all over the place.

5 o’clocks and Scuffs start off as small strands of hair poking out. So as you draw them near the edge of the face they begin to overlap each other making a darker value. However, Trimmed and Fuller beards start to wrap around the entire jawline to indicate thickness. 

-Note that all beards have different growing patterns and might not be as straight as the example below so I suggest you google various beard nationalities.

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I think when drawing any kind of style face the shape is what makes your character look appealing. That being said, here’s a random few I came with. To me at least I prefer curvy shapes that give a sense of organic squishiness to the face instead of angular stiff ones. 

-Try to look at your outlined shapes three-dimensionally and imagine invisible lines wrapping around them.

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Assuming your question is still related to drawing bara, I’m using this same sketch below just to show you a small variation of body types that I think kinda fit the description. 

Of course, this is [b]not[/b] an ultimate guideline to drawing bara, this is simply my take on the subject. :)

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I recommend reading [b]Drawing faces & hands by Andrew Loomis[/b] where he covers drawing different shaped faces.

https://archive.org/stream/andrew-loomis-drawing-the-head-hands#page/n0/mode/2up

I hope this helps you a bit more!